Looking nice and dapper, Sherlock! This is a scene from the Elementary episode "All in the Family."
Added:
Where are Watson and Holmes headed that they're all dressed up on Elementary. "All in the Family" is the 13th episode of the show's second season.
Added:

Elementary Season 2 Episode 13 Quotes

[To Bell] I have faith in you! I have faith in your perseverance!

Sherlock

I am not a deranged lunatic, but by all means, keep pushing me

Sherlock