Originally Posted by srmalcomson
Sounds like a tuner or repair are my options.
Yes. The list of stand alone tuners, aka set top boxes (STB) is here: http://www.avsforum.com/avs-vb/showthread.php?t=179095
New units start at less than $130 and used ones can be found on ebay for less than $60, at times.
I'd get a repair estimate and decide which option looks better to you. If the HDTV is newer, less than 3 years old, I'd lean to getting it fixed. If it's older than that, I'd lean to getting a STB.
Picking an STB is not as straight forward as it should be. Each of the units has its own pros and cons. Do your homework before buying and see the linked topics for the currently available units. Be sure the unit you get has both a QAM tuner & ATSC (for use with an antenna). Digital tuners either come ATSC alone or ATSC & QAM.
The older units are cheaper but also have drawbacks, primarily the fact the tuners themselves don't always work as well. Some of the older QAM units don't get all QAM channels the cableco passes, while others don't read PSIP (channel remapping info).
The other option is to rent an HD box for just the local channels from Comcast. In my area it only costs $2.50 a month. Check with them for the cost in your area.