I have a Toshiba projection monitor it doesn't have a coax cable hookup on the back for a regular cable, it also doesn't have a tuner so i must have the cable companys cable box to watch tv.Question is i want to get rid of the cable companys box so i don't have to pay the fee for the box every month, but keep their basic tv service, can i purchase a analog digital tuner that i can hook to the cable?