Tomorrow night (actually, Sunday morning) GSN's Black and White Overnight bloc will run two color episodes of What's My Line? One is from 1969, the other is from 1974 and on both, the Mystery Guest is Maureen Stapleton, who passed away a few days ago.
Then later Sunday, the channel is running a salute to the late Peter Tomarken. It consists of eighteen consecutive episodes of Press Your Luck, the first of which originally aired January 3, 1985. The marathon runs on GSN from 9 AM (Eastern time) to 6 PM.