So if Dan hosted HS, then Laugh-In would've had different hosts, because there wouldn't have been Rowan and Martin. I believe once Laugh-In was cancelled, it was also the end of Rowan and Martin. Dick would make a number of game show appearances and Dan basically faded away. Based on the pilot, HQ certainly had the star power, so the writing would've been good, but who knows if Rowan would've had the same appeal as host over Peter Marshall.