Adored by the Network: In the late 1990s and early 2000s, there was good reason that the USA Network was nicknamed "The Wings Network", and ReelzChannel took the same title with their airings of the series in 2012.
Billing Displacement: Tony Shalhoub is featured prominently on the box art of all Wings DVD releases, including the Season One and Two set, which featured him in only one episode (he made a single guest appearance in the second season before officially joining the cast in Season Three).
"There's Always Room for Cello", in which Roy's son comes out of the closet, was the third episode produced but was not broadcast until halfway through the second season. Homosexuality was still something of a taboo topic for a sitcom in 1990, and NBC had reservations about such a relatively new show tackling the issue.
When the show was made available for streaming on Netflix (and later Hulu), 22 episodes were missing. Most notably "Twisted Sister", the episode that introduces Casey.
The Other Darrin: In flashbacks, the Hackett parents were played by different actors than the ones who played them in the series proper.
The original pilot script was rejected by NBC president Brandon Tartikoff. Although he liked the show's concept, Tartikoff felt the initial script was merely a series of individual scenes introducing each character; it lacked a developing storyline. Co-Creator David Lee later admitted this was a rookie mistake.
The show was initially planned to debut in the fall of 1989, but casting proved so difficult that became impractical. After the cast was finally assembled, Crystal Bernard had other commitments which delayed shooting the pilot for yet another three months. The series ultimately didn't begin airing until April, 1990, and only seven episodes were shot for its first season (one of which was held back for season 2).
Helen Chappel was originally conceived to be of Greek descent and the producers had Peri Gilpin (best known for playing Roz Doyle on Frasier) in mind for the part. NBC president Brandon Tartikoff felt Gilpin lacked experience in leading roles and suggested Crystal Bernard instead. Since Bernard had a Southern accent, Helen was rewritten as a transplanted Texan, and Gilpin instead appeared in the third season episode "Four Dates That Will Live In Infamy". Also, Joe and Helen were initially envisioned as an already-divorced couple, but NBC nixed this idea.
Backed by the Pentagon: One of the earlier examples; the Air Corps supplied both planes and pilots for the film. The rest of the Army, meanwhile, coughed up $16 million (a huge amount at the time) to help with budget problems, and supplied soldiers and tanks for the battlefield scenes.
Billing Displacement: Even though Clara Bow has top billing, her character, Mary, only appears sporadically. She didn't even exist in the original draft, and was added mainly because Sex Sells.