I agree, Malcolm.
16mm dupe footage for the color insert and no surround channel audio for the "Tingler is loose" sequence?
Perhaps a licensor in the UK will get it right!
In the original theatrical release, the scene where the Tingler is loose in the theater was on a separate roll of 35mm magnetic that was played through the surround speakers with Price's voice and screaming.
Has that been restored for this release?