One theory (https://www.youtube.com/watch?v=4L3R8Lgpq9E) that I've heard is that 20th Century Studios (formally, 20th Century Fox) and by extension (https://www.reddit.com/r/DCuniverse/comments/9ggroz/where_is_the_classic_batman_tv_series/), Disney still own (https://www.reddit.com/r/television/comments/8wfugo/why_is_the_60s_batman_not_on_streaming/) the distribution rights (https://hiddenremote.com/2017/06/10/classic-batman-series-available-streaming-netflix/).

One theory (https://www.youtube.com/watch?v=4L3R8Lgpq9E)

Do you honestly believe that anyone is going to watch a nearly 2 1/2 hour video on this? :confused: Last time I saw it TUBI was streaming it.

Though obviously you have to have a Roku device, but it is available on The Roku Channel, and also available on Filmrise.