Quick link. Tokyo-based theatre group Japanese Theatre of the Deaf (also on Facebook) performs traditional Kyogen in sign language (shuwa 手話in Japanese). Following up their recent performances in London BBC reporter joins one of their workshops in sign-language traditional comedy. Unfortunately the video only works for those in the UK. I have only recently found out about this company, and their work looks amazing. I am looking forward to learning more about their activities, and how they contribute to spreading traditional performance in areas other genres have trouble reaching.
Japan (as the UK as far as I know) is particularly active in spreading the culture of sign language. Signed news are broadcasted on a daily basis, and I am a fan of minna no shuwa, the sign language course on the national TV educational channel, NHK t-テレ , broadcasted on Sunday evenings. Japanese Theatre of the Deaf also offers multi-level sign language classes.