10 TV Show Mistakes Directors Left In Because The Acting Was Too Good

Returning to those verbal botches that paved the way for a brief improvisational masterclass, another tongue-twister of sorts soon led to Kelsey Grammer being met with a particularly cheeky response from his amused co-star.

You can hardly blame the Frasier leading man for struggling to get through the line of "Fault-finding, flaw-fleeing Frasier" without the odd trip along the way. But rather than burst out into a fit of laugher on the back of signing off that statement with the word "Flasier" during one particularly unfortunate line read, David Hyde Pierce had other ideas.

Without skipping a beat, the Niles actor jumped on the mistake with a mischievous, "You said Flasier" before repeatedly poking his on-screen brother over his botch.

And the subsequent childish back-and-forth was so gloriously side-splitting that all involved felt getting rid of it would've been a foolish flailure on their part.