So I'm watching Iron Man 2 last night when my wife comes in and says "You're missing Stewart selling Classical music on PBS." So I go into the living room and there on WTTW (Chicago) is Stewart, popping in and out, discussing his love for Classical music and urging me to subscribe to public television! Turns out that the station was hawking a CD collection for their quarterly pledge drive. The DVD of the program, which also included interviews with other notable composers/musicians, was also available for a higher pledge level.
The program was made last year. I just thought it was funny that they would be selling a CD collection a la Time/Life, but kinda' cool that they wanted Stew to be a part of it!