It seems one of TV's longest running sitcom's may be facing the end of the road, with many the stars of The Big Bang Theory yet to secure their contracts for anything after this upcoming tenth season.

Sources are saying that Jim Parsons (Sheldon), Johnny Galecki (Leonard), Kaley Cuoco (Penny), Simon Helberg (Howard), Kunal Nayyar (Raj), Mayim Bialik (Amy) and Melissa Rauch (Bernadette) are all looking for pay rises, even though most of them had all secured the 'Friends money' back in 2014, getting one million an episode.

However, the contract negotiations are not impacting current production, with the stars all returning to work already for the tenth season. The uncertainty of the show's future has made things difficult for showrunner Steve Molaro though, who told THR;

"All we can do right now is focus on season 10 and go script by script, which is what we would be doing anyway. As far as I'm concerned, here in the writers' room, it's business usual: moving forward with the characters and letting them live their lives day by day and feeling out what happens with them.

"We don't really arc out stories too far, and we let things happen organically, and if things catch us by surprise — like Bernadette being pregnant or something like that — if it feels right, we go with it.

"It's more of that and if and when we know something that's actual information that can be helpful [regarding the contracts], we may do something differently, but until then, we're sticking to the game plan."

Asked how much notice he would need if it was the final season, Molaro said; "The more the better. If I had a couple of episodes of advance warning, I'm confident we could do something meaningful, but hopefully it won't come to that."

We'd say this was bad news, BUT, it's been almost ten seasons, it probably is about time they called it a day before things really started jumping the shark for Sheldon and the gang.