Has four tuners, double the recording space and is THX Certified. TiVo announced its TiVo Premiere Elite set-top box earlier this week. It packs four digital tuners and a 2TB hard drive which is says is good for 300 hours of Full HD recordings. It is TiVo's first and only DVR with four tuners allowing for simultaneous recording of four different shows while viewing a fifth recorded program. ...