Dick did American Bandstand, $10,000/$25,000/$100,000 Pyramid game shows, and yes he and Ed McMahon did the Publishers Clearing House Sweepstakes for many a years.
I grew up watching the Pyramid shows, and AB, and had to deal with the PCH Sweepstakes ads for a number of years, but nothing but respect for Mr. Clark. He and Don Cornelius were the pimps of music dance shows.