Based on a review of available records, no major pay television channel stopped airing Naruto: Shippuden exactly two years after its initial release in a specific region. The series premiered in Japan in 2007 and internationally over subsequent years. If you are referring to a specific country or channel (e.g., Disney XD in the US, which stopped airing the dub in 2011 after about two years), please provide more details for a precise answer.