In this "Best of 2020" holiday special, host Luke Burbank and announcer Elena Passarello confess to being both naughty and nice this year; actors Thomas Middleditch and Ben Schwartz discuss the secrets behind creating their long-form improv comedy series; comedian Atsuko Okatsuka shares a gut-busting anecdote about getting too close to a stranger's dog; and Grammy-nominated singer-songwriter Amythyst Kiah performs "Firewater."