I have just put new batteries in the remote and it does not work

Problem could be any of 4 places:

Bad new batteries, corroded battery contact, bad remote, bad remote receiver in tv.

You should not have to reprogram the remote. The programming is stored in Non-volatile ram.

have you checked the polarity one the new batteries you installed? (flip the batttery updside down)

Just put in new batteries and see if that fixes it. If that does not help, you need a new remote control.

Turn tv on manually.Test the remote control all functions are dead or some functions work other don't?Tries take the remote control parts and clean the inner rubbers buttons between the rubbers insulater and the remote circuitries board and the battery connections + - connections with some rubbing alchahol.Then wait awhile like 20 mins and putting it back together again and putting in new battery in the remote,it might work again.If getting the same result than the remote CPU chip is probally dead,remote control devices are very depended on it CPU chip.Try website like Remotes.com to buy an original remote for the replacement.

Take the remote control aparts,take some Q tips dips it in with some rubbing alchahol.Clean the remote control PCB board,putting it back together again,wait like 20 mins.Put in new batteries.The remote now should work again.If not it garbage,because it CPU chip is dead.Try website like Remotes.com to buy an exact remote to ur original remote.

you need to clean your remote with alcohol.open the remote and clean it with white alcohol,that should do it if not buy a new remote.you can probably get one at partstore.com..good luck.

Sounds like you need a remote, or the remote lost its program. You need to check at the dealership to be sure.

if it is a universal remote just look up your t.v. in the instuction book that came with the remote,and follow the instructions in the book on how to put in the code for your t.v.

Did you install the batteries correctly?
Some remotes (Universal) need to be re-programed when you install new batteries.
Go to remotefinder.rca.com/default.aspx?site=rca for proper codes.