What are the release dates for Johnny Bravo - 1997 Loch Ness Den Mother Quo Doofus 2-21?

It seems you're asking about a specific episode of the animated series *Johnny Bravo*. However, the details you provided are incorrect or incomplete.

Here's why:

* "Loch Ness Den Mother Quo Doofus 2-21" is not a recognized title for any *Johnny Bravo* episode.

* The show ran from 1997 to 2004, but there is no episode with that name or that references "Quo Doofus" or a "Den Mother" from Loch Ness.

To help you find the information you're looking for, could you clarify the following:

1. What exactly is the episode title? Double-check the spelling and make sure you have the correct title.

2. What is the context of the episode? Briefly describe what happens in the episode, or any characters or events you remember from it.

Once you provide this information, I can help you find the release date for the specific *Johnny Bravo* episode you are interested in.