ER? What's happening with TNT?

I record and watch ER every day. AFAIK we have a couple-few years to go. I just noticed TNT has it on for just FIVE more episodes, then they air some (to me) C&@p, Supernatural, at that time period. No other information.

What am I missing here? Do you know what's happening with TNT.

I cant find any info on the TNT site.

ER? What's happening with TNT?