In Here Comes Garfield, apparently the Pleasure Motors commercial is on every channel.
Announcer: You know Pleasure Motors- *click* You know Pleasure Motors is conveniently located right here in Downtown- *click* Of course, if you can't make it to our Downtown location, we have new locations under construction up in Midtown- *click* Uptown- *click* and in the Loop! *click* At Pleasure Motors, your business is our pleasure! *click* Our pleasure is your business! *click* Our pleasure is none of your business! *click*
Moments before that, when Jon asks where Odie, Garfied mimes the entire scene from before (how they harassed a grumpy old man who calls the dogcatcher, who then takes away Odie).
Jon: You got fleas, or something? Garfield:(grabs Jon's face) What we have here is a failure to communicate. [Garfield pats Jon's cheeks, then slaps him]
This dialogue at the beginning:
Jon: What would you like for breakfast, Garfield? Garfield: Oh, a cup of coffee, Danish, morning paper. Jon: OK, one bowl of catfood coming right up. Garfield: Nobody listens anymore.
From the Christmas special, Garfield trying out some sausage gravy which, unbeknownst to him, was spiked by Jon's grandmother with chili powder. It turns Garfield into essentially a flamethrower.
Grandma's "eating for two" quip and Dad's look of shock after nodding obliviously for a few seconds.
In Garfield's Halloween Adventure/Garfield in Disguise:
"All that candycandycandycandy...Steady yourself, Garfield." Jim Davis said that this was his favorite line in all of the specials.
"We be at the mercy of the sea, matey! Topside, topside, batten the hatches! Trim the mains, slip the sheets! FLIBBER THE JIBBETS! I WANT MY MOMMY!!!"
The best (or worst) alarm clock ever:
Binky: HEEEEEY, KIIIIIIDS!
This bit by Binky:
Binky: Remember, kids: if you don't exercise with Binky, you're gonna to grow up to be worthleeeess! Garfield: I hate you, Binky! Where's my remote control?
One more bit by Binky, after Garfield learns about this being the night to get candy:
Binky: That's right, kids! Tonight is Halloween night! And we want to be in great shape to trick-or-treat for all that CANDY! Don't weeeeee? Garfield:(ecstatic)Yes, we dooooooo!!!
Garfield threatening the woman who only gave him and Odie a single piece of candy, complete with pirate voice. It works and they both get a big pile. Even funnier in that Garfield doesn't really talk, yet he succeeds anyway.
Garfield: Me thinks you be a might stingy with your candy, miss. If you don't reconsider your contribution I'll give your living room drapes a taste of me broadsword.
The entire sequence where the talking scale mistakes Garfield for Orson Welles.
Jon trying to figure out what to wear for his date with Liz, which has him dressing up like a ballerina, a gorilla, and even Popeye. And then when he finally realizes that he should just dress like himself, he winds up forgetting to wear pants.
Jon preparing the turkey for Thanksgiving dinner. This involves him failing to put it out overnight to thaw, not bothering to make stuffing, misreading the direction to "Rub skin with butter" by rubbing butter on his own skin, and setting the oven on 500 degrees rather than the requested 325 degrees.
Jon driving out of control and repeatedly bumping into the sidewalk, due to Garfield panicking that they're going to the vet.