Unless either Meredith or Sinclair sells off one of its existing stations in the Las Vegas market, we could across them off the list. If I remember right, in Sinclair's most recent transactions, they have the right to sell-off their Vegas duopoly (KVMY/KVCW) to Fox by 2014; if that transaction does become reality, the TV landscape there becomes very interesting, not just by an ownership standpoint, but also even by a network affiliation standpoint.
Las Vegas was one of those cities hard-hit by the economic crisis, and it lost nearly 19,000 TV homes from last TV season. That said, it's still a pretty attractive market, almost like Miami as to CBS and NBC in the late 80s/early 90s. I know CBS owns radio stations in Vegas, and KLAS is a heritage CBS affiliate (first station in Nevada, and CBS has been there since day one [1953])...they've been in downsizing mode in recent years, but it wouldn't surprise if the Eye emergizes as a potential bidder for KLAS.