its really strange it cause i tested and worked
[00:08:56] <~Dean> http://www.youtube.com/watch?v=8PTgnEmlLWI&feature=topvideos
[00:08:59] <&Botname> [YouTube] "Aref Ghafouri-Yetenek sizsiniz Turkiye yari final" - Viewed: 2368298 - - User: MrArefgh - Likes: 1272 Dislikes: 272
using the fix for regex
$regex($strip($1-),http:\/\/.*youtube.*\/watch\?v=(.*))
i dont know what are you doing, but the hash works fine