Interview and Live Performance (Stich ins Glück, Reden, Übers Ende der Welt) 
Tokio Hotel promotes Zimmer 438 on VIVA Live and talks about the messages behind their songs on the album. 

Raw file from tetzi: Part 1, Part 2, Part 3, Part 4 

Subtitled HQ interview (.rar archive): Part 1 | Part 2 | Part 3 | Part 4 
Translated by macikint @ THTchannel 
Timed by Ondine 

HQ performance (no subtitles, cut by song): Stich ins Glück | Reden | Übers Ende der Welt 

*Note: There were a few gaps in the translation that I used to sub these (some sentences/phrases weren't translated), and some of Gülcan's parts (when she goes to breaks or introduces stuff) were summarized rather than translated precisely, but I don't think we're missing much there. :) 

On YouTube (9 Parts) 

Part 1: Spanish vacations and Kaulitz Pasta 
http://www.youtube.com/watch?v=prIiBqkiZsc 

Part 2: Watching themselves on TV and French fans 
http://www.youtube.com/watch?v=hZnot_huNac 

Part 3: Making Spring Nicht 
http://www.youtube.com/watch?v=mWOrRb3Mqk0 

Part 4: Bill's unseen burp 
http://www.youtube.com/watch?v=k3XTTCCJC18 

Part 5: Stage matters 
http://www.youtube.com/watch?v=4fqV_6Wp45w 

Part 6: Dancing classes and karate 
http://www.youtube.com/watch?v=QLMu4sfSBeE 

Part 7: Stich ins Glück 
http://www.youtube.com/watch?v=9gaF2qcYXN4 

Part 8: Reden 
http://www.youtube.com/watch?v=axGWurFhZz8 

Part 9: Übers Ende der Welt 
http://www.youtube.com/watch?v=ZH5CreHrcwI