From The TV IV

Season Two of It's Always Sunny in Philadelphia premiered on June 29, 2006. This season increased its episode totals from 7 to 10 and added Danny DeVito as a regular cast member. During season two, Frank becomes part-owner of the bar by buying the place nextdoor which technically owns up to half of Paddy's. The gang continues its immoral behavior hitting on issues such as drug addition, terrorism, and steroids.

[edit] Episodes

#	#	Title	Airdate
8	1	Charlie Gets Crippled	June 29, 2006
9	2	The Gang Goes Jihad	June 29, 2006
10	3	Dennis and Dee Go on Welfare	July 6, 2006
11	4	Mac Bangs Dennis' Mom	July 6, 2006
12	5	Hundred Dollar Baby	July 13, 2006
13	6	The Gang Gives Back	July 20, 2006
14	7	The Gang Exploits a Miracle	July 27, 2006
15	8	The Gang Runs for Office	August 3, 2006
16	9	Charlie Goes America All Over Everybody's Ass	August 10, 2006
17	10	Dennis and Dee Get a New Dad	August 17, 2006