Comment and credit. Simple as 3.14.
Buffyverse
01.



04.



07.



10.



13.



NCIS
01.



04.



07.



LOCI
01.



04.



07.



10.


Veronica Mars
01.



04.



07.



10.


Serenity
01.



04.



07.


King Arthur
01.



04.



07.



10.



Misc.
01.



04.



07.


Notes:
Misc. #06 could also go under NCIS or Veronica Mars. It's Michael Muhney, I believe from the JAG episodes that piloted NCIS.
Serenity #08 might also be viewed as a Serenity/Numb3rs crossover.
Quite a few of these icons have song lyrics, but I'm too lazy to put which, and quite a few were for icon contests, and those I can't remember.