What are some good Bombcasts to listen to?

Well, I would say all of them but that's not a very good answer.

Definitely check out the Game of the Year podcast from last year, the Ed Boon Mortal Kombat episode, and the Metal Gear Solid 4 snakecast. 

" Definitely check out the Game of the Year podcast from last year "

I forget what the date was, but in one of them they talk about Hemp Milk and its prolly the best podcast ever

" Well, I would say all of them but that's not a very good answer. "

It's gotta be the one where they talk about the days of the week and brad drops the knowledge bomb on everyone about sunday 
lmao

The episodes with Giancarlo Varinini (sp?) are some of my favorites. Also, when Grin comes to visit is one of the best podcasts ever.
Giant Bombcast 09-22-2009 (Not Giancarlo. I'm gonna ****ing play Persona 3...)
 
Giant Bombcast 04-07-2009 (Went to Houston, you damn gamecop!)
 
Giant Bombcast 03-24-2009 (Not Giancarlo. The Attack of the Sweds)

Find the "I have a Wii" episode.

The one where Michael Cera is Halo was pretty hilarious.

Where they talk about peter monlyneux's balls (after E3 i think) and the one where they discuss bears vs sharks vs dinosaurs on the moon stuff. Also for about 3 or 4 weeks in the emails they talked about zombies and robots and cyborg zombies, that was a good time.

The PAX, E3 and GoTY 'casts are great.

The 9/23/08 is great because of the random man made Red Alert sound effects going in it.  
 
The 3/17/09 is so awesome for the GI Joe tangent the crew goes on (much to Ryan's dismay) 
 
The 7/21/09 has the infamous night vision goggles bet and some funny comments about night vision goggles. 
 
Also, what bombcast was the T. Rex VS Bears discussion on?

" The 9/23/08 is great because of the random man made Red Alert sound effects going in it.   The 3/17/09 is so awesome for the GI Joe tangent the crew goes on (much to Ryan's dismay)  The 7/21/09 has the infamous night vision goggles bet and some funny comments about night vision goggles.  Also, what bombcast was the T. Rex VS Bears discussion on? "

8/6/08 - Hemp Milk
 
8/20/08 - We all learn of Pig's milk
 
9/10/08 - Dreamcast Anniversary
 
10/9/08 - TGS
 
12/10/08 - Entire podcast is lost due to technical difficulties and hilarity ensues
 
12/31/08 - Game of the year deliberation
 
1/14/09 - Giancarlo joins in the fun 
 
2/11/09 - Jolly Rancher Soda Time
 
They're my favourites that you haven't seen.

The first PAX episode was great.

10/28/08
 
they talked a lot about the new game
s out that 
sea
son  

Every single one is magical in one way or another but if you had to go with just one as an appetizer for more....hmm, December 9, 2008. Short and totally amazing.

The ON THE MOON!!!!/Dinosaurs Podcast is pretty good, as is the Hemp Milk podcast, the GI Joe Podcast, and at least one of the TGS podcasts.

If you played mgs4, the giant snakecast is great fun to listen to.

 03-24-2009    The former GRIN guys come and do the most epic taste test ever...  Will be a hard bombcast to top in my opinion.

3/24/09 best first 40 minutes of any podcast ever
 
Any of E3, PAX, TGS or GDC
 
12/9/08, the tech difficulties make the podcast very funny

Which is the one where Jeff does an impression of Brad at the end? 
''Hello, iiim brad shoemaker''
The voice he does is genious.

The GDC one where Carrie and that other guy came and told hilarious stories. What a great Bombcast.

I will also say the first pax one was awesome as people got drunker and drunker.

" The GDC one where Carrie and that other guy came and told hilarious stories. What a great Bombcast. "

" @StarFoxA said:

" The GDC one where Carrie and that other guy came and told hilarious stories. What a great Bombcast. "

Thats the final E3 09 one. "

I didn't remember the date until I read through this thread, but the March 24th 2009 podcast with the crazy Swedish food is absolutely hilarious. Also the E3 podcast with NEVER, but that's also well summarized in video form. 
  
Seek out some of the ones mentioned in this thread, but stay on top of the podcast each week, as the recurring jokes and insanely obscure references are always totally great.