Does my 17 Gateway gtw-l17m103 tv have a digital tuner or do I have to get a convertor box to view local channels?

SOURCE: lcd tv

To solution #2 
My TV has  the same problem. Where can I get the parts for backlight/lamp and capacitors?

SOURCE: How do I set my PT-44LCX65 up to receive broadcast HDTV signals.

You should use the auto-program function in the customer menu. It will prompt you to select which antenna input you wish to program and then ask if you are on cable or receiving signals via "air" or "broadcast" mode. Allow the TV to load all the channels. You may notice that the auto program mode may move along quickly during the addition of analog channels and that during the scanning of the digital channels that it may look like nothing is happening. Patience is a virtue here. Wait until it has completely scanned both analog and digital bands and you will recieve both versions of the station's signal. If, for example, you have a local channel 5, the digital version will be 5-1, and so on.

Good luck!

michtech

SOURCE: gateway gtw l17m103 light out

For the solutution repair of the Gateway Model GTW-L17M103 TV 1/2 lit screen - I was told by a local authorized Sanyo Flat Screen Repair shop that the lamp or bulb is going out and needs to be replaced. He said the replacement would run around $125. I have the same problem as well and now am seeking to purchase a lamp/bulb.

SOURCE: Can't view local HD with built-in QAM tuner on Sharp Aquos LED

I found this solution at ehow.com and it works: http://www.ehow.com/how_5417083_hd-channels-comcast.html. You'll just have to switch over to another input to view the HD channels.