What channel does my dynex tv need to be on to get comcast

SOURCE: I have comcast digital cable

Here is the webpage for the Dynex remote codes. I hope this helps you solve your problem. (www.dynexproducts.com/universalcontrolcodes.aspx) Copy the web address and paste into the address bar in you browser. That will take you to the page that has all the remote codes for Dynex televisions. You can use the webs site for customer support also with the customer support e-mail. They will be able to help you find the right code if you cannot find it on the code page. The Dynex customer support telephone number is 1-800-305-2204. you can contact them between the hours of 7am and 12am CST.

SOURCE: need code for Dynex/DX-l42-10A for Dish Network

I know you've probably figured this out by now, since you posted last May, but I figured I would post the solution, since I just found it, and someone else may want to know.
I bought one of these sets the day after Christmas 2009, and finally figured out the code that works with the Dish Network 5.4 IR remote.
I did a Code Scan, and found that the code that works is 721. In the Dish Network listing, this is listed as the third code for Sansui.

Hope someone finds this useful, even if it's too late for you.

SOURCE: Remote control code

Check REMOTE codes here
<a heref="http://universalremotecodes.blogspot.com/">Magnavox Universal Remote</a>

SOURCE: Need a comcast remote code

Try the Emerson codes...4683 worked for my Dynex