The Longest World Titleholders in TNA, NXT and NJPW and 2nd Longest in WWE during 2016 were all in TNA at the same time

Interesting fact that all these guys were on the same roster in 2010. AJ Styles almost beat Kevin Owens. But Owens has it by a few weeks. You can't ever say that TNA didn't have talent on their roster.

WWE - AJ Styles

NXT - Samoa Joe

NJPW - Okada

TNA - Lashley