Too bad there is no blu-ray poll thread for this show. I'd rate it between 8 and 10, I think.
Sound is great. Picture looks good to me. Cinematography keeps my interest.
Occasional discrete mixing. from Baggy!
It's now out on BD, in a set called Still Growing Up: Live and Unwrapped, with a bonus DVD called Still Growing Up.
Focuses on Up material, but with plenty of other eras sprinkled in. If you like PG at all, pick this up!