The Sensational She-Hulk #5

This 1989 Marvel gem titled "Saturdaze" on the cover finds She-Hulk smack in the middle of a prehistoric panic — she's lunging forward alongside a group of cave-people clad in animal skins while a massive, red-eyed dinosaur looms open-jawed behind them, all apparently playing out on a television screen being controlled by a mysterious hand wielding a "BongVision" remote. John Byrne both wrote and drew this issue, bringing his sharp wit and dynamic linework to what looks like a wonderfully absurd collision of eras. It's the kind of delightfully offbeat adventure that made The Sensational She-Hulk one of Marvel's most entertaining titles of the era.