Rant alert!
Here's why I don't think partnering with Turner is a good idea: Turner doesn't make TV programs.
IOTL, a big component to the Fox network's early success was that its first hit shows, 21 Jump Street, The Tracey Ullman Show, and later The Simpsons, were self-produced (this is arguably what they needed to survive as other television studios would have been wary of low advertising dollars since the network was new at the time). I've heard the term "post-Fox environment" to describe the broadcast network landscape today where more than half of the primetime programs are produced by the networks that air them. Fox was already a formidable television production studio at the time thanks to shows like Trapper John M.D. and The Fall Guy so they simply shifted their priorities to their new network.
Turner, on the other hand, will pretty much have to start from scratch. While Turner is a cable pioneer, it has no real presence on the broadcast networks. United Artists' last hit show was Gilligan's Island, which ended in 1967! You might say that Disney doesn't have a presence either but they've had a hit anthology show running for 28 years straight. For the Disney-Turner network to have the same impact as OTL's Fox, Turner needs to ramp up its production considerably.
Also, Ted had a history of paying low for television programming for WTBS - what he really loved was playing movies.
If Disney doesn't buy NBC, I'd suggest partnering with a company with a more active broadcast portfolio such as Universal (who is making Magnum P.I. and Simon & Simon) or even Paramount (whose Happy Days is still going strong and has two spinoffs, Laverne & Shirley and Mork & Mindy, also on the air - not to mention their other shows like Taxi and Bosom Buddies).