Original sentence: The second episode was recorded in English because of issues with the German accents of some of the Monty Python members:  only John Cleese and Michael Palin spoke German that could be easily understood by native German speakers
Edited sentence: The second episode was recorded in English because of issues with the German accents of some of the Monty Python members:  only John Cleese and Michael Palin spoke German that could be easily understood by native speakers