The addition of Matt Lucas as Sharon's half-sister was a superb decision - whoever thought of it should be proud of themselves. Karen is the best thing to happen to this season. Over the past episodes, K&K has been funny, but it lacked what made the first few seasons so special and spectacular. Thankfully, "Roots" brings it, excuse the pun, back to its roots.
Not only was Matt Lucas sensational in this, but each character had an absolutely hilarious one-liner one or many times throughout the episode. The comedy was sharp and witty, exactly what the rest of the series should follow. Let's hope Gina Riley and Jane Turner keep up this brilliance for the rest of the season and the many seasons more. Over 2 million viewers again surely means this show is brilliant.