A warning you might float back at Grandma:

Those things, so you can have just one remote, have different modes where the
buttons do different things. It's easy to spend ages poking buttons expecting
VCR functions in DVD mode, or vice versa.

My father got one of the first ones on the market (a Go-Video-- are those still
as different from other makes as when they were primarily a VCR maker?) and it
went back because of the remote's complexity.
--
Marada Shra'drakaii