There's been a rash of new HD announcements coming from all over the cable landscape lately, and now it's Cablevision's turn. The provider has added the HD-flavors of HGTV and Food Network to the lineup across its entire network. The new goodies will show up on channels 730 and 766, respectively. This double-dose of "lifestyle" programming arrives just in time for the holidays and brings Cablevision's iO TV HD tally to 44. Sure, the number lags behind that of HD-count leader DirecTV, but it's nothing to shake a stick at. But we'd really like to see Cablevision use up a more substantial portion of the that 500 HD channel capacity!