The Plusnet list is not complete, also have a look here, type in your postcode to see the freeview channels available.
In particular HD channels 1-5 are not listed but available. (channels 101 to 113)
Almost impossible to keep up with these things.
When I worked for Sky years back keeping programme listings correct and up to date even on a weekly basis was a nightmare.
Truth is like a threshing machine; tender sensibilities must keep out of the way.