OpenSubtitles often hosts various English versions (including hearing-impaired). Addic7ed is a reliable source for edited TV subtitles.
Subscene usually has comprehensive packs for the entire first season. Blackadder subtitles English S01E06
Fed up with his status as the "spare" prince, Edmund fires his loyal but dim-witted companions, Percy and Baldrick. He then sets out to recruit the six most "evil" men in the kingdom—The Seven Most Evil Men in the Kingdom (including himself)—to help him overthrow his father, King Richard IV. The Plot Highlights: Blackadder subtitles English S01E06
During a banquet, Edmund attempts to poison the King and the entire court. However, due to a series of farcical mix-ups involving poisoned wine, Edmund ends up being the one who drinks the lethal brew. Blackadder subtitles English S01E06