mine are mostly from anime shows, sorry, since i grew up with it. :P
美味しんぼ ending
http://www.youtube.com/watch?v=g4C9zGjWRSA
美味しんぼ opening season 2
http://www.youtube.com/watch?v=O08Swdk0p10
キテレツ大百科 opening (korokke song)
http://www.youtube.com/watch?v=F6BNdk7hMuM
キテレツ大百科 ending (first kiss)
http://www.youtube.com/watch?v=DcBlVUJnab0
> i like the song
Slam Dunk opening
http://www.youtube.com/watch?v=lSuniqF0e9Q
> nothing less than amazing for an amazing series
DBZ opening (japanese)
http://www.youtube.com/watch?v=6rtQbpwmG8I
> can't forget how this song really got me pumped
DBZ ending (japanese)
http://www.youtube.com/watch?v=XuXGcqRBICY
> yeah, weird song to end, but seeing little gohan running really worked for some reason
Sailor Moon opening (japanese)
http://www.youtube.com/watch?v=CvJsXwEuKR0
> Sailor Moon Super S's was my favorite opening of series
Doraemon opening (obligatory, since it's just awesome)
http://www.youtube.com/watch?v=NoudeNF9DQE
> I liked this season's opening the most
Doraemon ending
http://www.youtube.com/watch?v=v1hhaYnTAGE
> just was ridiculously funny :P
Tetsuwan Atom (Astro Boy)
http://www.youtube.com/watch?v=D4HVYZhohGw
> seriously, everyone knows the tune
Also Anpanman but I can't find it ;_;
I could list a lot more... but I'll let you guys have the floor now. :)
opening: MST3K (all of them all in my profile)
ending: I don't know
The World, by Nightmare.
Motteke! Sailor Fuku. (The Lucky Star theme) ^_^
And Yuko Goto Koi no Mikuru Densetsu from Haruhi of course. :P
Mikuru run run...
Invader Zim opening/closing
Motteke! Serafuku (OP) (Lucky Star)
Hare Hare Yukai (ED) (Haruhi)
Sora Mimi Cake (OP) (Azumanga Daioh!)
Raspberry Heaven (ED) (Azumanga Daioh!)
Kinjirareta Asobi (OP) (Rozen Maiden)
Bokusatsu Tenshi Dokuro-chan (OP) (Bokusatsu Tenshi Dokuro-chan)
How It's Made theme song olol
the simpsons opening were it shows they're dancing and its a circus. it always makes me laugh
ReWrite - 4th FMa opening
http://youtube.com/watch?v=laWzZlJAR1k (http://youtube.com/watch?v=laWzZlJAR1k)
Sakura Kiss - Ouran High School Host Club
http://youtube.com/watch?v=PG5Libg_xPo (http://youtube.com/watch?v=PG5Libg_xPo)
Freckles - 1st Rurouni Kenshin opening
http://youtube.com/watch?v=X-llSM2q3XQ (http://youtube.com/watch?v=X-llSM2q3XQ)
Bleach 1st Opening
http://youtube.com/watch?v=pwI1QU8NMDg (http://youtube.com/watch?v=pwI1QU8NMDg)
D.N. Angel English Opening
http://youtube.com/watch?v=QnGuNp_H7a0 (http://youtube.com/watch?v=QnGuNp_H7a0)
Kesenai Tsumi - FMA 1st ending
http://youtube.com/watch?v=-YGICuxqib8 (http://youtube.com/watch?v=-YGICuxqib8)
To the Other Side of the Door - FMA 2nd Ending
http://youtube.com/watch?v=OvE_QdDd_ns (http://youtube.com/watch?v=OvE_QdDd_ns)
Shissou - OHSHC
http://youtube.com/watch?v=bE-osoUG180 (http://youtube.com/watch?v=bE-osoUG180)
Link - FMA Movie
http://youtube.com/watch?v=ZdKE9yCjpBY (http://youtube.com/watch?v=ZdKE9yCjpBY)
Cyborg 009 Ending
http://youtube.com/watch?v=1Alr-49XdXY (http://youtube.com/watch?v=1Alr-49XdXY)
Death Note Ending 1
http://youtube.com/watch?v=_U2QR4SoaeI (http://youtube.com/watch?v=_U2QR4SoaeI)
ToS Japanese opening (game)
http://youtube.com/watch?v=xcOhHSKEKu0 (http://youtube.com/watch?v=xcOhHSKEKu0)
love them ^^
(but there's so many :P)