If you want to feel young, watch Only Fools and Horses again. He’s the same age in your mind. He’s frozen in time like a funny, spivvy pickle.
But the real David Jason? He’s still out there, at 84, making people giggle. He’s a living museum of pure British silliness.
So the answer is simple: Very old, but not even slightly past his prime. And that’s the best kind of old.