What's Up With Family Guy DVD?!

I just bought family guy volume 5 and learned that not all the episodes are included in the seasons!. Why!? I was looking forward to seeing ernie the giant chicken episodes but they are cut off too in volume 5!. Those in my opinion would be the best ones!. Why didn't seth just combine all the episodes especially the good ones!? I dont want to sound mad but that just kills it!.Www@Enter-QA@Com

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