VHS-HiFi - Check! I still have it. Had the 6.5 foot Kloss Novabeam 100 front projection too, Carver amp and JBL classics. Times were not bad...
Kloss Advent. Ah, memories. Front projections were the shiznit until 1987-88 or so. Then in 1989, Mitsubishi came out with their new 45" and 50" models (4501/5001 in wood and 4502/5002 in fake thin black plastic trims ... the thin trim sold out almost instantly) with 700 lines of resolution (previous was 560, i.e., the signal was even more electronically enhanced). 45" was $2,700 and 50" $3,000. That was the beginning of the RPTV decade.
BTW, I meant the "12 O'clock High" film (1949) with Gregory Peckory, which the series was based on.
https://en.wikipedia.org/wiki/Twelve_O'Clock_High