User blog comment:BlueBarracudas555/Ridonculous Race Contestants Ages/@comment-4389268-20150807220340/@comment-26920609-20151015012112

I think it's:

2006: Producers find the Island. Chris leaves Larry

2008: TDI/TDA

2009: CMTDARS/TDWT/TDRI

2010: TDAS/TDPI/RR1