The follow up to the highly successful ''Series/ILoveLucy'', which aired from 1962-68 on the same network (Creator/{{CBS}}) as its predecessor. The series was based on the book ''Life Without George'' by Irene Kampen.

Creator/LucilleBall stars as Lucy Carmichael, a widow with two children, Chris (Candy Moore) and Jerry (Jimmy Garrett), who shares her Danfield, New York house with Vivian Bagley (Vivian Vance) and her son Sherman (Ralph Hart). Lucy had been left a substantial trust fund by her late husband, which was managed during the first season by Mr. Barnsdahl (Charles Lane), then by Theodore J. Mooney (Gale Gordon) during the next two seasons. Personality-wise, Ball and Vance's characters were effectively the same ones they played on ''Series/ILoveLucy''.

Recurring characters during the first season included next-door neighbor Harry Connors ([[Series/RowanAndMartinsLaughIn Dick Martin]]), Vivian's beau Eddie Collins (Don Briggs) and Chris' boyfriend Alan Harper (Tom Lowell); all three were retired without mention by the second season due to the departure of their actors.

During the third season, as Vivian Vance cut back on her appearances, Ann Sothern made a few appearances as "Countess Framboise", the widow of a count who left her "his noble title and all of his noble debts" and who sparred with "Mr. Money" (as she called him) in her attempts to get money to cover said debts. This attempt at having Sothern replace Vance as co-star fizzled out when the former insisted on getting top billing alongside with Lucille Ball, who was against it. Chris, Jerry and Sherman, meanwhile, appeared much less frequently during that season.

At the start of the fourth season, with Vance gone for good as a regular, Lucy and Mr. Mooney moved to Los Angeles and Lucy began working for Mr. Mooney. The other characters were written out: Vivian remarried and stayed in Danfield with Sherman, Chris went to college and Jerry, while he made it to Los Angeles at first, was shipped off to a military academy after two episodes. A new character, Mary Jane Lewis (Mary Jane Croft), filled the "best friend" role previously assumed by Vance. During the fifth and sixth seasons, various guests stars appeared as themselves conducting business at the bank Lucy worked at, including a few appearances by Vance as her old character (now known as Vivian Bunson).

Ball ended the series after the sixth season in 1968; a new series, ''Here's Lucy'', debuted in its place. This change was done for two reasons: one, to allow Ball's children, Lucie Arnaz and Desi Arnaz, Jr., to appear alongside their mother and two, because Ball felt enough episodes were produced for syndication. The fact that she sold Creator/DesiluStudios (the company that produced ''The Lucy Show'') to Creator/{{Paramount}} also reportedly influenced the decision; ''Here's Lucy'' was produced by her new company, Lucille Ball Productions.
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!!This show provides examples of:

* AccidentalMisnaming: The Countess has a habit of calling Mr. Mooney "Mr. Money."
* TheArtifact: "Based on the Book ''Life Without George'' by Irene Kampen." Though the basic plot of the early years was indeed modeled on Kampen's premise (two women sharing a house with their respective children), the major retool the series underwent in season 4 effectively severed any connection the series once had to the book. For legal reasons, however, Kampen's credit remained until the final episode.
* BackToSchool: Lucy goes back to high school in the episode "Lucy Gets Her Diploma" after the bank institutes a new policy that requires employees to have a high school diploma.
* BankToaster: Lucy demonstrates one to a potential account holder in the episode "Lucy Takes a Job at the Bank."
* ClipShow: The season 6 episode "Lucy and Viv Reminisce" has Vivian come out to California to nurse an injured Lucy, where their reminiscences lead into clips from past episodes.
* ChaosArchitecture:
** The layouts and setups for Lucy and Viv's bedrooms change each time they appear.
** The set for Lucy and Viv's kitchen was heavily redesigned and expanded for the second season. Though that set would remain for the rest of the Danfield run, the stovetop and sink would frequently shift positions on the counter, depending on plot needs.
* ChuckCunninghamSyndrome: Harry Connors, Lucy & Viv's Danfield neighbor, disappeared without explanation midway through the first season and was never mentioned again. Ostensibly, the character was written out because actor Dick Martin had other commitments, and also because Lucille Ball didn't want a possible love interest for the Lucy character to be a series regular.
* CommutingOnABus: The three children were used quite often during the first season, but their appearances progressively became more infrequent until, come the third season, they were barely featured. The following year, they were PutOnABus for good.
* ContinuityNod: When Lucy and Viv climb onto the roof to retrieve Mr. Mooney's bird in "Lucy Gets the Bird," Viv acknowledges the TV antenna they installed back in season 1.
* DeadpanSnarker: Vivian Bagley.
* DependingOnTheWriter: Lucy Carmichael's intelligence and level of competence varied greatly in the later seasons, when there was no longer a permanent writing staff.
* ExactlyWhatItSaysOnTheTin: Many episode titles are just one sentence plot descriptions (e.g. ''Lucy & Viv Put in a Shower'', ''Lucy Takes a Job at the Bank'' and ''Lucy is a Disc Jockey'', among others).
* {{Flanderization}}: Lucy Carmichael became increasingly dumber and more incompetent as the series progressed, losing much of the confidence and craftiness she displayed earlier on. Likewise, Mr. Mooney became far more ill-tempered and histrionic compared to the relatively controlled (albeit frustrated) man of authority he was initially shown to be.
* {{Expy}}: The writers had it in their contracts that Lucy Carmichael was to be based on Lucy Ricardo.
* HereWeGoAgain: This happens in "Lucy and the Ring-a-Ding Ring" when Mary Jane puts the ring meant for Mr. Mooney's wife, Irma, on ''her'' finger... but, just like Lucy did earlier in the episode, she winds up getting it stuck on her finger, [[OhCrap much to Mr. Mooney's dismay.]]
* HilariousOuttakes: Rare for a series from this era, but numerous outtakes from the final two seasons survived. These were included as supplements on the official DVD sets.
* LaughTrack: Averted for the most part. While the laughter of its predecessor was allegedly used on other shows, this one was filmed in front of a {{studio audience}}, with gaps in reaction and missed punchlines filled out with prerecorded laughter.
* LockedInARoom:
** Lucy and Mr. Mooney are locked in a bank vault together in the two-part episode Mr. Mooney debuts in. The [[HereWeGoAgain next time it happens, which is in the second part]], she manages to ''accidentally trap Mr. Mooney in by himself,'' With little food or water to speak of.
** Lucy and Mr. Mooney again find themselves locked in a room together, this time with Countess Framboise, come season 4.
* MonsterMash: The episode "Lucy and The Monsters" features several monsters from Franchise/UniversalHorror.
* OpeningCredits: Each season had different opening credits:
** Season 1 featured an [[AnimatedCreditsOpening animated opening]] of Lucy and Vivian fixing up the title.
** Season 2 featured stills from previous episodes.
** Season 3 featured clips from previous episodes, which were creatively edited. An alternate version without Vivian Vance's credit was prepared for episodes she did not appear in.
** Seasons 4 to 6 featured clips from previous episodes viewed through a kaleidoscope. The sequence was slightly revamped each season.
** Early Season 5 episodes featured another [[AnimatedCreditsOpening animated opening]], with Lucille Ball depicted as a "jack-in-the-box". This was intended to replace the kaleidoscope, but Ball reportedly disliked it. Some episodes following its retirement had the audio from this opening play under the kaleidoscope footage due to poor editing. Nearly 50 years later, the official DVD release restored the "jack-in-the-box" opening for the initial 10 episodes it was prepared for.
* ProfessionalButtKisser: Mr. Mooney becomes this whenever his boss, Mr. Cheever, is around, or any potential client of sufficient wealth.
* PutOnABus:
** Mr. Barnsdahl at the beginning of season 2.
** Lucy's son Jerry half-way through season 4.
* {{Retool}}: The fourth season saw a major retool of the series. Lucy and Mr. Mooney moved to Los Angeles and the former started working for the latter. Vivian and the kids were all written out.
* SarcasmBlind: In one episode of Season 2, Lucy plans to (and does, ''on top of winning the case'') sue Mr. Mooney after the sarcastic suggestion when Lucy demands that he kept his dog, Nelson, quiet or else and Mr. Mooney doesn't do anything about it. Lucy was no Phoenix Wright or Perry Mason to be sure, during the trial, but she managed to prove her case when Nelson barks and sets off all the other dogs outside the courtroom.
* SeriesContinuityError: The original writing staff departed after season 2, resulting in many previously established plot details changing in the show's later years. Examples include:
** Lucy's maiden name was originally Taylor, but would later become [=McGillicuddy=] (which was also Lucy Ricardo's maiden name).
** Lucy's son, Jerry, was erroneously referred to as Jimmy in season 5 (Jimmy Garrett was the actor who played Jerry).
** Lucy dates an Italian millionaire in a season 2 episode, but come season 6 would claim to have never met a millionaire before.
** Initially portrayed as a college graduate, Lucy would eventually be depicted as having never completed high school.
** After moving to Los Angeles, Mr. Mooney claims to have never had a son, though his three sons did appear in Danfield.
* ShoutOut: One episode has Lucy write a letter to Senator John R. Dodds, the name of Vivian Vance's real-life husband.
* {{Sitcom}}: Naturally, being the follow-up to ''Series/ILoveLucy''.
* SituationalSociability: Carol Bradford, Lucy's temporary roommate in California, is painfully shy and socially awkward. Give her a song to sing, however, and she cuts loose completely.
* SpecialGuest: Later seasons of this series had several per season, usually with the title "Lucy and (Name of celebrity)".
* SpiritualSuccessor: Developed as the follow-up to ''Series/ILoveLucy'', initially featuring not only Lucille Ball and Vivian Vance but many of the same writers and behind-the-scenes personnel.
** ''Here's Lucy'' was the spiritual successor to this show.
* StealingFromTheTill: In ''Lucy and the Bank Scandal'', she wrongfully believes that Mr. Mooney would be as low as to embezzle money from his own bank, with nothing but circumstantial evidence and a shaky foundation to accuse him with at best. To prove that he is guilty of it, Lucy and Vivian try to find the money they ''think'' is buried in his backyard by digging up Mr. Mooney's backyard. Later, this accusation is subverted when it was in fact the oil tank for his oil-powered heater that they find instead and get everyone covered in oil when Lucy strikes the tank.
* StraightMan: Vivian played this role at the start of the series. Mr. Mooney filled the part for the rest of it.
* StraightManAndWiseGuy: "Lucy and Creator/GeorgeBurns" sees Lucy teaming up with Burns to do an act similar to what Burns used to do with his wife Gracie Allen; most of the third act is taken up by the show they put on. During his meeting with Mr. Mooney at the bank, Burns mentions the other comediennes he tried to team up with:
-->'''George Burns:''' I had a great act going with Carol Channing, and then she left me, she went on ''Theatre/HelloDolly'' Then I did an act with Dorothy Provine, and then she went into television. And Connie Stevens went into pictures! [[note]]In real life, Channing teamed up with Burns for the occasional stage show during the late 1950s following Allen's retirement, and Stevens co-starred with Burns in the sitcom ''Wendy and Me'' during the 1964-65 season. Provine never teamed up with Burns.[[/note]]
* SuspiciouslySimilarSubstitute: Ill-tempered banker Mr. Barnsdahl, replaced by ill-tempered banker Mr. Mooney starting with the second season.
* ThreeCameras: With Creator/DesiluStudios being the ones that ''created'' the technique, it was only natural that this show would use it.
* TheBusCameBack: Vivian Vance made three guest appearances after leaving the show - once in season 5 and twice in season 6.
* TheUnseen: Mr. Mooney's wife, Irma. Eventually, the descriptions Mr. Mooney gave of her became so outlandish (7-feet tall, bowlegged, bald) that no actress could've played the part.
* WrittenInAbsence - Vivian Vance's contract for season 3 called for her to appear in only 20 of the season's 26 episodes. For three of those episodes, it was mentioned that Viv was out of town, thus allowing Countess Framboise to stay in her room. For the other three, no explanation was given, rendering Vance an AbsenteeActor.
* ZanyScheme: A staple of every Lucy series.