can we get hdtv with only a coax cable hook-up? dont have a set top box.

Solution
Depends on your cable provider and the TV.
The TV would need to have a QAM digital tuner built in.
Your cable provider may provide a limited number of unencrypted channels. You can call and ask them.
Connect the coax cable to the TV. Select QAM and run channel scan. If may take a while.
Some cable companies offer a digital converter box that still uses the TV tuner. Usually cheaper than a full cable box.
Depends on your cable provider and the TV.
The TV would need to have a QAM digital tuner built in.
Your cable provider may provide a limited number of unencrypted channels. You can call and ask them.
Connect the coax cable to the TV. Select QAM and run channel scan. If may take a while.
Some cable companies offer a digital converter box that still uses the TV tuner. Usually cheaper than a full cable box.
 
Solution