The Next Generation consists of 7 seasons and 176 (DVD and original broadcast) or 178 (syndicated) episodes. People have counted this to amass to 7,832 minutes, or 130 and half hour. Well worth it, though some episodes have not aged gracefully,

Episodes marked with star (★) are considered essential watch - I got the list from r/DaystromInstitute.
Episodes marked with checkmark (✓) were seen by me.
I’ve watched the series years before starting this site, so there are no notes. Sorry, all I can do here is just an informative but boring list.

  1. Two episodes were initially aired as two normal-length ones, but since then we often see them combined into single episodes of double length. ↩︎ ↩︎