For now, it is the season with the least amount of released albums, without counting EPs. Although a disc titled "Season 4, Volume 1" was released, no other volumes were ever released.
There's only been one season so far, so...The first season.
Just one. The first series was split into two parts, so it may seem like there's been two seasons, when there's actually been only one.
Season one volume 2
season one
It said ''Glee'' was coming out soon in September. so you gonna just have to wait.
Wikipedia has great season synopsis!
It is actually not on any of the Glee: The Music volumes, but you can get it on Glee: The Music, The Complete Season One
I'm almost positive the rest of the season starts this august sometime
I'm assuming you're talking about Sam because he's the only one that has brought his siblings to the glee club. The episode is Rumors, season 2 episode 19
season two of Glee will not come out until next year (2010-2011) as the second season of Glee has not even started yet. This year (2009-2010), season one was broken into two parts, but it is still part of the same season.
There is one or more songs sang in each episode so you do the math.
season one episode 18. at about 11 minutes into the episode. :)