GUIDE PLUS - RCA TV - do not have remote - how to set up channels?

Hello - I have a RCA TV with Guide Plus Gold - and it worked perfectly when I subscribed to cable. But I recently cancelled cable - but I know I should be able to get at least a few local channels - but nothing comes in. I do not have the Guide Plus remote. Any advice on how to get a few channels would be much appreciated! Thanks you all.