TV drama "ER", which is currently on its 15th and final season, has had its season extended by three episodes. "ER" has been winning its Thursday night time slot in the ratings this season, spurring on the extended run.
Previourlsy, NBC was going to air "Kings", a new drama, on the 12th of March, the week after ER went off the airwaves. However, ER producer John Wells has struck a deal that could see his new drama "Police" put in the freed up spot, instead.
"Kings" would then be moved to a different night all together.