$ for i in {01..20}; do youtube-dl -f best -o supermonsters.s01e$i.mp4 https://mediaserve.ert.gr/bpk-vod/vodext/default/supermonsters-ep$i/supermonsters-ep$i/index.m3u8; done
$ for i in {21..22}; do youtube-dl -f best -o supermonsters.s02e$i.mp4 https://mediaserve.ert.gr/bpk-vod/vodext/default/supermonsters-ep$i-s02/supermonsters-ep$i-s02/index.m3u8; done
$ for i in {01..30}; do youtube-dl -f best -o numberblocks.s01e$i.mp4 https://mediaserve.ert.gr/bpk-vod/vodext/default/numberblocks-s01-ep$i/numberblocks-s01-ep$i/index.m3u8; done
$ for i in {01..26}; do youtube-dl -f best -o hero-dad.s01e$i.mp4 https://mediaserve.ert.gr/bpk-vod/vod/default/hero-dad-ep$i/hero-dad-ep$i/index.m3u8; done
$ for i in {01..17}; do youtube-dl -o froutopia.s01e$i.mp4 -f best https://mediaserve.ert.gr/bpk-vod/vod/default/froutopia-s01-ep$i/froutopia-s01-ep$i/index.m3u8; done
$ for i in {01..13}; do youtube-dl -o froutopia.s02e$i.mp4 -f best https://mediaserve.ert.gr/bpk-vod/vod/default/froutopia-s02-ep$i/froutopia-s02-ep$i/index.m3u8; done