From TVGameshows.net:
Comedian Bill Rafferty, mostly invisible from television over the last 20 years, pays a visit to the set of GSN Live May 2.
The 63-year-old Rafferty emceed three game shows during his career, including a syndicated version of Card Sharks which is now popping up in weekend reruns on GSN.
As a prelude to Rafferty's guest shot, GSN will air all-Rafferty Card Sharks episodes in the 1:30-2 p.m. (EDT/PDT) slot for the week of April 28-May 2.