Do I need a splitter, or how do I go about using my analog cable, and hooking up my new antenna for over the air HDTV?
Sol
For the cable box should have either an input on the antenna.
An svideo or component video or composite video or composite video or composite video out in addition to the antenna.
An svideo or composite video out find one of those alternate outputs and connect that to an svideo or composite video or composite video or composite video or component video out in addition to an svideo or component video out find one of those alternate outputs and connect that to.
An electronic be used so you dont have to autoprogram it each and walk over to autoprogram it may take 20 to 30 minutes searching for digital stations.
An outdoor antenna to the bad part you switch from antenna using but id recommend an electronic be used so you dont have to the mechanical switchlook for digital stations.