Akai CT-2868AT

Question

I got this tv for free and it doesn't have a remote. I just want to be able to switch to the a/v channel without a remote.I bought a Remotec universal remote and I can't get it to work with this tv, none of the codes for it work. Not only that, I cannot find a manual for this tv so I don't even know if I can switch to a/v without a remote.