The Fosters

I have only recently came across and purchased the t.v. box set of "chef" starring Lenny Henry. I found him to be immensely funny.Even this show aired years ago. I have been trying to find any other shows and finally came across "The Fosters". British comedy is more relaxed and honestly funnier than our day to day humor.If there is a DVD out on this sitcom, I would love to purchase it,only if it it is in good condition and will play in region 1 format. I also understand that Lenny Henry did a Comic Relief with Robin Williams, I would love to view that as well or could someone point me in the right direction to find that. Also has Lenny Henry done any other shows or sitcoms that I haven't come across lately? let me know.