Doonesbury by Garry Trudeau for May 24, 1978
Voice: Irwin, I just can't do it! It'd be a breach of faith for me to look at NBC shows while I'm still... Man: Just one, Fred. We only need your reaction to one. Voice: One? Which one? Man: It's a sit-com called "Spa". It's NBC's response to all those jiggle shows of yours. Voice: What do you mean "response"? Man: Well, actually, I'd have to say we did you one better! Man: I'll be right over. Man: I mean, you'll still get the credit and everything.