bbc4 had been running episodes a week ahead of their bbc1
broadcast. bbc4 was where the episodes were being capped.
however, last week, the bbc1 broadcast was cancelled due to a football match,
in order to stop from getting 2 weeks ahead of bbc1, bbc4 decided to rerun
episode 1 of the current season. this week bbc1 aired episode 3, which was
aired on bbc4 2 weeks ago, but starting from tonight bbc4 no longer air the
following episode straight after the bbc1 broadcast, but will instead be
showing the episode prior to the one just seen on bbc1.
so next week and the following 4 weeks there will be new life on mars, only
now coming from bbc1 rather than bbc4.