I just successfully re-added my Comcast TVE credentials. For whatever reason, the Science Channel is not authorizing. It previously worked. I tried to individually reauthorize. Log results below:
2020/01/05 14:31:30.527978 [TVE] action=request type=Document method=GET url=https://www.sciencechannel.com/watch/science
2020/01/05 14:31:30.921816 [TVE] action=cookie_response error=map[error_code:[410] error_description:[User metadata not found, invalid auth token.] error_message:[Gone] state:[nonce,<>]]