I particularly wanted to watch "...Morbius", which I did. Why? Well, when I watched it upon Georgia Public Broadcasting in the 1980s, compiled into an "omnibus/movie" edition (as done on BBCA), well, much of the music and some of the sound effects were missing! Like the sequence when Sarah spotted the spaceship "graveyard", when the area was illuminated by "lightning", there was no accompanying clap of thunder. Or when the optically inserted "rain" started, forcing the Doctor and Sarah to seek shelter at Solon's "castle", there was no hissing "patter" of droplets. Or, when the Sisterhood used their powers to blow open the castle's doors and caused the candle fixture to drop, all one heard was the rather weak "clack" of the prop lowered to the floor. Finally, when the Sisterhood teleported the TARDIS and later the Doctor to their shrine, all was silent! It made the presentation seem more like a rehearsal than a broadcast ready production.
Thankfully, the BBCA broadcast had all the audio in place, which definitely improved the "atmosphere". Probably the only reason Morbius retained the electronic "warble" to his voice was because his ring modulated dialogue was recorded onto the primary track. How GPB managed to receive an incomplete copy, I don't know. The same thing happened with "Resurrection of the Daleks". It makes you realize just how important the foley track is to a story. Someone aims a prop which glows feebly under the studio lights and another actor drops "dead" with no "zap"? You gotta' give credit to the performers for keeping straight faces. Sound effects can make ALL the difference at times!
Sincerely,
Bill