I remember the episode, but I must say that I've not watched any Simpsons in a long time, nevermind this particular episode! Review to follow soon. J Milburn (talk) 16:47, 4 June 2012 (UTC)
"who paid visit to a cemetery in Los Angeles to do research for several scenes at the beginning of the episode where the Simpsons visit a funeral salesman." Feels like a somehwhat useless factoid for the lead. It would be worth mentioning the director, however.
The formatting on the DVD commentary references isn't quite right- I'd recommend
Maxtone-Graham, Ian (2009). The Simpsons – The Complete Twelfth Season DVD commentary for the episode "Tennis the Menace". 20th Century Fox. [note change in italics, the dash and the loss of "(DVD)". I appreciate the template may not support this- just do it manually?]