Here's a link that has the video clip. it is done undercover so there is no commentary. the majority of it really doesn't look much different than the pound, but, at least, shelter dogs don't have to spend their entire lives like that.
this is also why i don't mind buying my dogs from hobby breeders (people who breed their pets), rather than actual breeders who have to cage the animals or have limited time to spend with them. no dog should be kept confined in a cage no matter what the reason.
http://www.iamscruelty.com/