$ grep -c '#EXTINF' combined-playlist.m3u
3500+

$ grep -o 'group-title="[^"]*"' combined-playlist.m3u | sort -u
group-title="Entertainment"
group-title="Movies"
group-title="News"
group-title="Sports"
group-title="Kids"

$ ls -lh xumo_epg.xml.gz tubi_epg.xml
-rw-r--r-- 1 user user 1.2M xumo_epg.xml.gz
-rw-r--r-- 1 user user 890K tubi_epg.xml