The television show Henry was not widely watched until it was scheduled for Tuesday evenings immediately after That' s Life, the most popular show on television  During the year after the move, Henry was consistently one of the ten most-watched shows on television  Since Henry' s recent move to Wednesday evenings, however, it has been watched by far fewer people
We must conclude that Henry was widely watched before the move to Wednesday evenings because it followed That' s Life and not because people especially liked it
Henry has been on the air for three years, but That's Life has been on the air for only two years.