Based on the data provided, the ratings for Blackadder II from 1986 seem to slightly decrease as the season progresses. The show starts off with a good rating of 8.4 for the first episode but then gradually decreases to 8.0 for the fourth episode before increasing again to 8.5 for the fifth episode. Therefore, based on the ratings, the show seems to have a consistent level of quality throughout with some fluctuations. If we were to determine a bingeable rating, it would be around 70.