Wondering if anyone has a solution to this - Volume of Beam attached to TV via the ARC:

I can’t seem to find the right settings to allow holding down the button on my MX880 to raise/lower volume - have to tap it over and over. Looking at the MX880/ screen, it does appear to be repeating a signal - but the TV only recognizes one volume button tap.

FWIW, the TVs remote (the Sony remote) works as expected with volume button held down.

Ive tried learning (1 and 2), various HEX codes, and various repeat values - but never been able to get hold/repeat to work.

Any ideas? Thanks in advance...