The Block - episodes airdate is moved to next day
On TMDB and IMDB episode 20 of season 17 was aired 08-09-2021, episode 19 on 07-09-2021. Perhaps dates of other episodes were also moved a day later.
Darnok shared this idea
under review · AdminAndrew Masyk (Founder, Simkl) responded
We use TVDB data. Please update at https://www.thetvdb.com/series/the-block/episodes/8590627