TV Repair Questions? Ask a TV Technician
No - although in each case the TV button on the remote flashed three times signifying acceptance of the code.
I have now tried with a black AT&T universal remote as well (both search and manual) but no luck although this remote works just fine with another TV I just bought.
I'm therefore wondering if there is some setting in the TV that needs to be changed as the problem seems to be TV-related rather than remote-related.