Take five: Earth to TV viewers, Earth to TV viewers. Today is Earth Day, which makes us think, of

Take five: Earth to TV viewers, Earth to TV viewers. Today is Earth Day, which makes us think, of course, of all things green, such as these five TV characters:

vRachel Green: Jennifer Aniston’s “Friends” character, a waitress-turned fashion designer.

vMr. Green Jeans: Captain Kangaroo’s sidekick.

vGreenzo: David Schwimmer’s bizarre guest superhero on “30 Rock.”

vJeff Greene: Larry David’s clueless agent, played by Jeff Garlin on “Curb Your Enthusiasm.”

vDr. Mark Greene: Doomed doctor, played by Anthony Edwards on “ER.”

“FOX’S 25TH ANNIVERSARY SPECIAL” (8 p.m., Fox):— Ryan Seacrest is our host for this rousing two-hour celebration of the greatest hits produced by a network that launched in 1987 with a feisty, maverick attitude and brought big changes to prime time. Stars scheduled to appear include Calista Flockhart (“Ally McBeal”); Kiefer Sutherland (“24”); David Duchovny and Gillian Anderson (“The X-Files”); Youngstown native Ed O’Neill, Katey Sagal and Christina Applegate (“Married ... With Children”); Jennifer Lopez and Steven Tyler (“American Idol”); Mila Kunis and Ashton Kutcher (“That ’70s Show”); and Gabrielle Carteris, Shannen Doherty and Jason Priestley (“Beverly Hills, 90210”).

“birdsong” (9 p.m., PBS): “Masterpiece Classic” continues its standout season with a two-part adaptation of Sebastian Faulk’s best-selling novel, “Birdsong.” It’s the poignant story of two lovers (Eddie Redmayne and Clemence Posey) torn apart by World War I.

“Veep” (10 p.m., HBO): Julia Louis-Dreyfus returns to series television in an over-the top comedy that has her playing a hapless and potty-mouthed vice president. The cast also includes Anna Chlumsky and Tony Hale.

“Firelight” (9 p.m., abc): Cuba Gooding Jr. stars in this new show in which he plays a counselor at a correctional facility for young women. He helps his charges turn their lives around as members of a volunteer group that battles forest fires, performs rescue missions and assists during national disasters.

tv listings, B6

entertainment news

WYSU pledge drive

youngstown

Listener-supported WYSU 88.5 FM, Youngstown State University’s public radio service, will conduct its annual spring pledge drive Tuesday through Friday.

The goal is $115,000.

Everyone who pledges support to WYSU (either as a new member, a renewing member, or with an additional gift) between now and the end of the spring pledge drive, will be entered into a drawing to win a pair of tickets on a Go Ahead Tours 11-day Tour of Vienna, Budapest and Prague.

The station will also offer daily prize packages, a new- member prize package and a Pennsylvania-member prize package. All of the prize packages will include a new HD Radio. No donation necessary to be entered into prize drawings.

With support from idmi.net, all Web pledges made through www.wysu.org will qualify for a partial match.

Call donations into 330-941-1481.