The crest and jersey of Celtic Football Club appear in O'Flanagan's Pub several times in this episode. Celtic are a Scottish team but have strong links with Ireland.
This marked the first time in show's history where it premiered outside the US. This was on the satellite channel Sky1 in the UK.
The plane that flies overhead has the word Derry Air as the company name which sounds like derrière which is the proper name for a person's buttocks.
The episode's plot is based off an episode of "Family Guy" where Peter learns he is Irish and his biological father is Mickey McFinnegan.