There's a very touching Tribute to Lis Sladen, that was on YouTube shortly after it aired in Britain. I downloaded from YouTube and burned it to DVD, so, I didn't save the bookmark, so, don't know if it's still up, but, I believe it perfectly legitimate being up, so there should be no problem.
I think it was called "Goodbye My Sarah Jane" or Simply "My Sarah Jane"
One Day I hope to be the Man my Cat thinks I am
Where are we going? And why are we in this Handbasket?