Thought I'd share this out of interest. Signed up for Sky Movies via the self-service part of the TCL site and then got a response email once it had been done.

Me thinks that the message hasn't been updated in a while:
"...Thank you for ordering the SKY Movies Plus package. This has now been added to your TV package.

SKY Movies 1 is on channel 20, SKY Movies 2 is on channel 21, SKY Movies Greats is on channel 22, MGM on channel 23 and TCM on channel 24."