I have a similar problem with my Legend L4211 TV. Remote did not work since new. Dealer ordered a new remote an shipped it to me. Wrong remote. If you can post a picture of your remote I may well have one you can have, it works, just not with my TV.
Dealer ordering me another one, sent them a picture this time so they hopefully get the right one this time.
Interesting note: After the dealer's first attempt at replacing the remote I tried calling Legend, direct. They said they would be glad to send me a new remote for $25.00. I asked why it wouldn't be covered by my warranty? They said that the RV manufacturer is covered by the warranty, not me, as they do not see me as the original purchaser of the TV??