Here's what I would like to do.
My oldest brother (who has diagnosed cognitive problems) just bought a new TV - a Haier brand 32" LED HDTV. (I got him a sweet deal from NewEgg - $196 for this - a pre-Black Friday special.)
The problem is this: he has a DVD player. I successfully got the TV to display the picture. However, to display the DVD, you have to select an input source - using an on-screen menu - which once you bring it up disappears after 3 seconds.
MUCH too fast to direct him how to move the cursor and select the new input source. (Bog Blast these frigging manufacturers with their *** Damned "screw anyone who isn't quickquickquick" design mentality!!!

)
By the time he looks down at the remote, the on screen menu has disappeared.
Anyway, it occurred to me that one of these learning remotes could be a solution. I could program in a macro - I think - that emits the key presses that change the input source to "Composite 2", the input source for the DVD.
Is this kind of thing what they are used for?
I'd like to find one cheap, under $30, as a Christmas present. I suspect that one of the $200+ Logitech and similar brand ones would definitely do this but I don't have $200 to spend on this for him.
Mainly, I want informed comments from real users of these devices on actual experiences with these devices. There are a lot of different models of these remotes at all price ranges, but this field has its own jargon closed to outsiders, which is typical of geek consumer crap.
Thanks.