The most touching episode of mine was December 25th of 2008. :)
Here is the link:
Part 1: http://www.youtube.com/watch?v=FpBohD0hZYY
Part 2: http://www.youtube.com/watch?v=SOHPpRNGLXc&feature=related
Part 3: http://www.youtube.com/watch?v=l8JPM_tM9wk
I really miss Choti Bahu, Dev and Radhika/ Avinash and Rubina... ! I'm crying... :(