The Big Bang Theory is one of my favourite shows on telly at the moment. It's so original and funny! All five of the main cast work so well together and have amazing chemistry with each other and guest star Christine Baranski fitted in superb and was extremely believable as Leonard's mother.
This episode was hilarious from the beginning with Sheldon, Raj and Howard playing on Guitar Hero (I think) and continued throughout. Sheldon and Leonard's mother made a absolutely hilarious couple - so alike and had amazing chemistry together as actors and characters. Also I loved seeing Penny and Leonard drawing closer together especially when Leonard explained his 'hugging machine'. Although I'm glad they didn't go all the way as it is defiantly too soon for Leonard and Penny to become a committed couple.
I haven't got much to say because I can barely control myself with laughter as I keep thinking of Sheldon and Leonard's mother singing on the karaoke.
Overall a truly amazing episode that I could watch over and over!