Doonesbury by Garry Trudeau for May 14, 1975
Waitress: What'll it be, fellahs? Zonker: I'll take a Coke, please. Patty: Pitcher of water for me. Zonker: So - what's on the schedule for today? Patty: Hmm... lemme see... most of today seems to be given over to a photosynthesis workshop, but tonight they're screening "The Light and the Dark"! Zonker: What's "The Light and the Dark"? Patty: It's an award-winning documentary on one day in the life of the sun! Zonker: Sounds exciting. Patty: Apparently, the footage on dawn is very controversial!