Post the title of the movie, the year you watched it (from memory) and the duration of the movie.
For me it was Jesus of Nazareth when I was around 15 yeard old from what I can remember. It was 6 hours and a half long on TV so I guess it was displayed without ads because now I see it's listed as 382 minutes.
nowhereman136 t1_iu1ltkq wrote
O.J. Made in America is a 467 minute long documentary and the longest film to win an oscar (best Documentary feature). It was re-edited and shown on tv as a miniseries. If that counts.
Aside from that, Once Upon a Time In America (229), Lawrence of Arabia (216), Ben Hur (212), The Irishman (209), Apocalypse Now (202). A few other classic 200+ movies that I haven't seen yet
I've binged the whole Lord of the Rings expanded editions. Combined its around 715 minutes