Complex sentence: Some people have perceived the casting of the white Caucasian actor Michael Bates as the Indian bearer Rangi Ram as an example of blackface, a perception that may have resulted in the programme being repeated infrequently on British television.
Split into simpler sentences: Some people have perceived the casting of the white Caucasian actor Michael Bates as the Indian bearer Rangi Ram as an example of blackface. That perception may have resulted in the programme being repeated infrequently on British television.