Based on the data provided, Documentary Now! from 2015 seems to be consistent in quality with ratings mostly in the "decent" to "good" range. The bingeable rating is 70.
Best Episodes
8.8
S3 E4
Waiting for the Artist
8.7
S2 E2
Juan Likes Rice and Chicken
8.6
S3 E2
Batsh*t Valley, Part 2
Worst Episodes
6.4
S3E6
Long Gone
7.1
S3E5
Searching for Mr. Larson: A Love Letter from the Far Side
7.1
S1E5
A Town, a Gangster, a Festival
Best Episodes
8.8
S3 E4
Waiting for the Artist
8.7
S2 E2
Juan Likes Rice and Chicken
8.6
S3 E2
Batsh*t Valley, Part 2
Worst Episodes
6.4
S3E6
Long Gone
7.1
S3E5
Searching for Mr. Larson: A Love Letter from the Far Side