"So if someone wants you to change the channel, kids, just say no." [from Episode 8]
All S1
"Don't forget, kids, look both ways before crossing your teacher." [from Episode 9]
"Hey, Heathcliff! Eat your heart out!" [from Episode 10]
"Beware of imitations, accept no substitutes. Batteries not included." [from Episode 11]
"You notice how every week I say something different here?" [from Episodes 12, 43, 61]
"Hey you, the kid who missed last week's show: You'd better have a good excuse." [from Episodes 13, 46, 48, 63]
"I suppose you're all wondering why I asked you here today." [from Episodes 14 and 15]
"And remember, lasagna is an important part of your nutritious breakfast. " [From Episode 15 in syndicated airings only]
"And just remember what you paid to get in." [from Episodes 16, 17, 40, and 69]
"This show has so many mentions of pasta, it'll affect your cholesterol count." [From Episode 17 in syndicated airings only]
"In the interest of conservation, today's show will recycle most of last week's jokes." [From Episode 18 in syndicated airings only]
"A funny thing happened to me on my way to my cartoon show." [from Episodes 18 and 19]
"Hey you, chewing the gum: I hope you brought enough for everybody!" [from Episodes 20 and 21]
"Eat and be lazy, kids, and someday you'll have your own show too." [from Episodes 22 and 23]
"Sell your remote control. I'm the best thing on." [from Episodes 24 and 25]
These quotes come from Wikiquote's Garfield and Friends pages and are available under the Creative Commons Attribution-ShareAlike License.