For over a decade, artist Bob Ross had an instructional painting television show on PBS called The Joy of Painting. Bob was well-known for his gentle personality and tendency to say "happy little clouds" and "happy little trees." His paintings were just a little corny, but he was technically skilled and I would watch in wonder at his magical ability to make a scene come alive with a single stroke of a brush (or more often, a palette knife loaded with $5 worth of alizarin crimson). Bob died in 1995. Earlier this year, PBS paid tribute to Bob with this autotuned remix of The Joy of Painting. (David posted this previously.)
Here's a 3-hour DVD of Bob Ross painting instruction that shows you how to paint lots of happy little things. It has received rave reviews on Amazon.