I use 7MC, although I dumped my tuner for a spell. IT will be going back in shortly (AIW HD card, its in this rig ATM)
If you do not need PCs in the other room you can pick up a network Media player for the TVs in those rooms, some will let you do netflix/youtube/hulu and such. About $100 can add USB storage to some, some will hold a Hard drive or just pull from the media server.
FWIW... Comcast and such, offers not many channels in CLearQAM. If you want to record things like your premium channels (or basically anything you can not get OTA) You will need to get a cablecard tuner or even better an M-Stream tuner. (google ceton tuners)
Comcast for instance is real picky about renting their cablecard/mstream (find out which is available in your area before going with one... mstream might be available next year here in South Jersey). If you call they will say they don't rent them. they do, speak to the manager. Or contact HQ about it. Most people do not know they do it, but they do.
(Most people do not know mc donalds sells bags of ice either that work there, but they do
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7MC IIRC will only let you use either analog or digital not both IIRC... not a big deal analog is dead. You can use Antennaweb if you want to use OTA signals. Depending on your location you can buy or build an antenna for pulling in UHF HD stations. Also on comcast... Pay for basic service and I can use my tuner to pull hte HD clearQAM stations.