I appreciate your effort to educate me on the fine music of Pink Floyd, but i have to let you know, i was already aware of them. Let me return the favour and tell you of the show i was quoting: The IT Crowd is a brilliant bit of British comedy depicting the escapades of the IT department in a stereotypical company.

here is a link to the bit i was quoting.

Yes, you do, because you’ve just used a double negative.