ImageGear
In a word, no.
the digital cheannels are broadcast in interleaved digital clumps on two or three discrete frequencies. You can only receive the channels that are encoded and broadcast locally.
Depending on your TV antenna set up and receiver type, you could receive multiplex broadcasts from more distant transmitters which will mirror most of the national channels available locally, but with different localised programming available from the more distant multiplex broadcast.
Not like the old analogue days, where you could tune across the entire band and pick up other regions or even continental TV broadcasts (although the sound was at a different spacing from the video signal than in the UK, so you got picture, or sound).