Sink or Swim 1980 S01E01 (Requested)

Episode: In the Beginning. Brian Webber lives in a flat above a petrol station in London. He's trying hard to make his way in the world, thus far with limited success. His girlfriend, Sonia, is a very serious minded young woman who is passionate only about things like vegetarianism and ecology. When Brian's younger brother, Steve, arrives in London looking for somewhere to stay, his lazy, cynical, noisy "Northern lout" attitude disrupts Brian's already messy life.