Complex sentence: Long after the cancellation of the weekly series, Brady continued his association with Rogers on television and in personal appearances; he also rejoined The Sons of the Pioneers in 1959, as a replacement for the defecting Shug Fisher, a well-known character actor.
Split into simpler sentences: Long after the cancellation of the weekly series, Brady continued his association with Rogers on television and in personal appearances. He also rejoined The Sons of the Pioneers in 1959, as a replacement for the defecting Shug Fisher, a well-known character actor.