Situation:

My wife wants a flatscreen in home office area to occasionally watch tv .
(we are comcast with a dvr that can use hdmi out as well as rgb etc)

Daughter & I have MBAir's 2011 vintage (not recent refresh but obviously have thunderbolt)

I'd like to not buy a 27"-32" samsung but instead the uber cool TBolt display & use it in the home office as a dock for my TBolt external drive, etc & have the nice big display

I looked at the inputs on the TBolt display & it can't accept an hdmi etc.

Is there any way to watch comcast cable/dvr on a Thunderbolt display?

I can't think of any but dual purposing it would help me justify the 1K pricetab easier

thanks in advance.