Fair questions asked fairly. My reply:
When I talk about a "black show" I'm referring to a show with a mainl African American cast. Everybody Hates Chris. It's aimed at everyone, but the show is about an African American kid, in an African American home (and an African American school?). Plain and simple. Now the themes and audience are much broader than African America, but the premise of the show is steeped in the African American experience, specifically, Chris Rock's.
There is no need to play into a stereotype to do a black show, however, it is very hard to do black comedy without at least making fun of the stereotypes that plague African Americans so impudently.
Inside Man, or House are not "black shows" they have black characters, perhaps purposefully or not, we don't know. But they are not entirely black shows. I believe that some may believe that black characters are only useful for black audiences, but I know better, and apparently, so do the people on House MD.
As for CW's UPN aspects, It's been a long time since those Moesha days and UPN has tossed it's black family friendly pedigree which is what allowed it to be established. I'm not surprised that CW is light on blackness, not at all. I'd be surprised if it was.
But Wallace owns Moesha's whole cast, honestly, and he's only onscreen for what, ten minutes a week? And Chris Rock? or Girlfriends? Chris Rock... Girlfriends... Hmmm...