Here the streaming links for all the rooms: https://wiki.debconf.org/wiki/DebConf14/Videostream

Here some the already (WOW!) uploaded recordings: http://meetings-archive.debian.net/pub/debian-meetings/2014/debconf14/webm/ (more to come!)

So, if you enjoyed their work, leave them a message here:

https://wiki.debconf.org/wiki/DebConf14/Videoteam/Thanks

(and if you really don't want to bother creating a wiki account just for that, put your message as a comment here in the same format as in the wiki (<country> - message -- <nickname>) and I'll post it there for you... because these guys and girls really deserves our thanks!)