Charlie Sheen and Jon Cryer to appear on James Burrows special

LOS ANGELES, Jan. 21 (UPI) -- The stars of several of television's most famous comedy series are to participate in the two-hour special Must See TV: A Tribute to James Burrows.

The program honoring the beloved director is set to air Feb. 21.

"There is nobody with better TV comedy instincts than Jimmy Burrows, and because of his guiding hand these remarkable shows will be forever celebrated and stand the test of time," Paul Telegdy, president of alternative and late-night programming for NBC Entertainment, said in a statement. "The caliber of talent joining us to celebrate Jimmy's accomplishments is a testament to his imprint in television history."

Scheduled to take part are --

Ted Danson, Shelley Long, Bebe Neuwirth, Rhea Perlman, John Ratzenberger and George Wendt from Cheers, with Kirstie Alley and Woody Harrelson in pre-taped segments

Jon Cryer and Charlie Sheen from Two and a Half Men

Friends alumni Jennifer Aniston, Courteney Cox, Lisa Kudrow, Matt LeBlanc and David Schwimmer, with Matthew Perry in a pre-taped segment

Frasier veterans Peri Gilpin, Jane Leeves and David Hyde Pierce, with Kelsey Grammer in a pre-taped segment

Will & Grace cast members Sean Hayes, Eric McCormack, Debra Messing and Megan Mullally

Taxi icons Tony Danza, Danny DeVito, Marilu Henner, Judd Hirsch, Carol Kane and Christopher Lloyd

The Big Bang Theory stars Kaley Cuoco, Johnny Galecki, Simon Helberg and Jim Parsons

Tony Shalhoub and Steven Weber of Wings fame

Mike & Molly luminaries Billy Gardell, Melissa McCarthy, Katy Mixon, Nyambi Nyambi and Reno Wilson