Evening all

I've a couple of questions / issues I'm hoping I can get some input on.

First, for some context, here's my system:

- Sources - Humax PVR (2Tb, used quite a bit to watch TV and record programs), 4K firestick, good quality Bluray player (expected to be upgraded to a 4k player soon). Allows a mix of Bluray discs, amazon prime, netflix and freeview to be watched live, recorded or streamed
- Old Panasonic plasma with only 1 working HDMI input - expected to be upgraded to a new 4k screen soon
- HD621
- G68 processor
- Jeff Rowland MC6 (very nice 6 channel amp, set up for 5 channel at the moment). I love this amp so I don't want to replace it if at all possible.
- B&W 803d's, HTM3s, 855 sub x 2 and 2 ceiling speakers for the rears (sofa is back against the wall). I'd like a HTM2d centre but I've no plans to increase the number of speakers anytime soon...although more in the ceiling would be OK I guess

Issue 1

All sources plugged into HD621 via decent HDMI cables
HD621 won't display a picture / screen isn't showing a picture irrespective of the source I'm trying to watch.
Sound plays just fine from any source.

In one previous thread it was suggested that a HDMI booster would help, but it hasn't. I've tried swapping the HDMI cables as well - no joy.
It certainly used to work, but doesn't now. I don't know if the HD621 isn't working, or that it is outputting a signal but the plasma won't display it for some reason.

Does anyone have any suggestions?


Issue 2

This is somewhat related to issue 1.

Am I right in thinking that the HD621 can't output video and audio to a screen (via the HDMI output connection) AND also output audio to the G68?

What I'm trying to do is find a solution that would allow us to watch any source using just the plasma for picture and sound (e.g we can watch the news / a recorded TV show / kids can watch netflix without needing to turn on the home cinema system), but add in the home cinema system for movies, from any source (e.g. Bluray, firestick).

If my understanding on the HD621 is correct, does anyone have a recommendation on a solution? I have found the AVPro range of products, that look great, but aren't cheap! I assume a new smart TV will help with the requirement of being able to watch any source using just the TV speakers, but I'm not sure it's going to allow movies from any source to be watched in surround sound as I'd like. Of course, a new processor would also help but I'm not sure how much of a sound improvement, if any, I'd get going down that route. E.g. would I get a better quality sound if I was able to process the latest codecs from a 4k Bluray player, for example, rather than needing to turn them into PCM of LPCM in the source and then feed them into the HD621??

Any thoughts would be appreciated.

Thanks, Simon

Home Cinema: Panasonic DMPBDT700, G68, Jeff Rowland MC6, Adept Response AR8, 803 Diamond, HTM3s, ASW855x2, CCM816x2, Pioneer 506XDE, Nordost / Au24 cables
Stereo: 808i.2, Audio Research Ref 3, Canary Audio 303s monos (modified), Adept Response AR8, Living Voice OBX-RW, Valhalla cabling