Might as well list any new to Buzzr reruns here from now until June.
The 2:30 ET P+ jumps forward for one week on April 25 (I think it's Buzzr Bingo time), so we get four of the five shows of the Marcia Wallace/Wesley Eure rematch (eps 321, 322, 324 and 325) and the first show with Bowser and Anita Gillette. (OAD: 3/31-4/1/80, 4/3-4/80, 4/7/80)
Looks like Classic Concentration jumps forward to eps 681-691 (minus 685) for the same reason. (OAD: 1/17-19/90, 1/22/90, 1/24-26/90, 1/29-31/90)
Not sure about whether 1967 Password is new next week (don't follow that show as religiously).