What we have here is the decisions of the Boomers coming back to haunt them.
When Leonard Goldenson decided to pitch ABC to advertisers based on demographics, he still believed in a mass appeal, broad-audience television network model, since along with "The Dating Game" and "Batman" he still had Lawrence Welk. Demographics made what-was-then a weaker network with a weaker station lineup more of an attractive sale and also gave his network a programming distinction over CBS and NBC.
What I don't think Goldenson had in mind was younger demos becoming the *only* drawing card for advertisers. We also had the ad agencies restructured so that the media buying decisions that used to be made by the more senior employees in the agency were now made by the newer employees, who simply didn't understand the appeal of older-skewing shows. And let's face it--as the Boomers took over the power in media during the 70s and 80s, they thought that their generation was going to be the power generation in *everything* for the rest of their lives--and then got the biggest rebuff they could imagine when the advertisers dumped them like a wet blanket for the much smaller group of Gen-Xers. (Now, the Gen-Xers are getting the same treatment as the ad community starts salivating for Gen-Yers.)
And the one problem game shows still have with advertisers that *are* interested in older demos is that the game show audience is considered much lower income than, say, the A&E/HGTV/Food Network audience that does attract advertising despite their older demos. Remember that "Coca-Cola Refreshing Filmmaker" movie ad with the fat housewife in the robe and bunny slippers nibbling on bons-bons in a trailer home taping a game show and playing it back to her son to make it look like she knew all of the answers? That's what the ad community sees as game show fans--and they're not going to pitch Caddys, Infinitis, office computer systems or stock brokerage firms on GSN for that very reason.
And need I point out that the networks tried to go the relatively high road this past fall and do mostly-scripted programming--and that their key demos went way south as a result. That's why you're going to be seeing more unscripted shows in the relationship genre in mid-season--and they aren't going away or being replaced by studio game shows any time soon. We need another "WWTBAM"--and three "TPIR" specials every six months isn't that.