Channel ☺+1 was one of the 600 channels broadcast by Satellite Five circa 200000. When the Doctor, Rose Tyler and Adam Mitchell arrived on the station, Channel ☺+1 was seen reporting solar flare activity. (DW: The Long Game)
By its name, this channel was presumably the timeshift channel of a "Channel ☺", outputing exactly the same programming as was broadcast an hour previously on its parent channel.