I've been suspecting age discrimination for a long time. The kids watching the show never said "Oh I hate Bob and Gordon because they're too old". Just a few years ago Gordon was in like half the episodes every season,kids seemed to really like him,then all of a sudden they start shoe horning Chris into every single episode and Gordon's only in like two freakin' episodes in Season 45. Almost the same thing happened to Maria and is happening to Gina despite the fact that all of the cast members are very available. We know they are available because Maria,Gordon and Gina were in the backround for a bunch of episodes last season but didn't say a word.Also Bob McGrath has expressed how much he would like to be in more episodes but the writers just don't write for him much anymore. I don't really understand the Gina thing,if it is about age,because Alison is only in her forties,almost ten years younger then Alan(who is also in almost every episode). And don't even get me started on Susan,she's gotten the worst treatment out of any of the cast members,at least Bob usually gets to talk unlike Susan who's almost always just an extra.