I was searching on google for series pilots, and I found the pre-runner to Family Guy. You can see it's more oriented toward kids, but can also see the similarities between it and Family Guy.
[ame=http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=2020234813]Family Guy - Unaired Pilot - Steve & Larry Video by Sin - MySpace Video[/ame]
[ame=http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=2020234813]Family Guy - Unaired Pilot - Steve & Larry Video by Sin - MySpace Video[/ame]