The granddaddy of great outdoor summer concert spaces throws itself a diamond anniversary party on “Great Performances” (PBS, 9 p.m., check local listings).

The 75th anniversary of Tanglewood in the woods of Lenox, Mass., is held with of course the Boston Symphony Orchestra and Boston Pops Orchestra, with such high profile guest stars as James Taylor, pictured here in a suit, as well as Yo-Yo Ma, Emanuel Ax, Peter Serkin and Anne-Sophie Mutter.

The program ranges from Aaron Copland to Ravel, Haydn, Beethoven, Tchaikovsky and Leonard Bernstein, who had a long history at Tanglewood.

The last Friday of the 2012 London Olympics (NBC, 8 p.m.) features finals in many things in track and field, BMX and diving.

The season finale of “Comedy Bang! Bang!” (IFC, 10 p.m.) features a raft of guest stars including David Cross, Tenacious D and “Weird Al” Yankovic.

Reruns come in double doses with twohouse of “Nikita” (The CW, 8 and 9 p.m.), “Bones” (Fox, 8 p.m.) and “20/20” (ABC, 9 p.m.).

Carmine “The Snake” Persico and Alberto “Alpo” Martinez are profiled on “Mobsters” (BIO, 9 p.m.) and “Gangsters” (Bio, 10 p.m.) respectively. A real snake is found, meanhwhile, on “Swamp Wars” (Animal Planet, 8 p.m.).

So much war in the word! Including: a night’s worth of “Storage Wars: Texas” (A&E, 8 p.m.).

“You Live in What?” (HGTV, 9 p.m.) is not so titled because it’s about unusual places to live necessarily, but because the host is a little hard of hearing.

Here are some new shows that Oprah has up her sleeve: “Super Saver Showdown” (OWN, 9 p.m.) in which families compete to save money on parties; and “Real Life: The Musical” (OWN, 10 p.m.) , about people who are aided to inject song into their everyday situations, such as starting up a romance tonight by doing some Lady Gaga.

On the season finale of “Common Law” (USA, 10 p.m.), Wes and Travis finally talk about what got them into cop-partner therapy.

Making its season premiere is “The Dead Files” (Travel, 10 p.m.) about an investigating team looking into paranormal activity, tonight in West Virginia.

A proposed sausage stand in Chicago gets “3 Days to Open with Bobby Flay” (Food Network, 10 p.m.).

Brazil is the destination for the team “Chasing UFOS” (National Geographic channel, 10 p.m.).

Following in the footsteps of Barnum is the team behind the questionable film “Mermaids: The Body Found” (Discovery, 8 p.m.).

Once he was the king of MTV and movies like “Freedy Got Fingered.” Now 41, he’s back with the stand-up special “Tom Green Live” (Showtime, 10 p.m.).

One of Green’s biggest achievement was his five month marriage to Drew Barrymore, whose great uncle, Lionel Barrymore, is star on Turner Classic Movies all day with a primetime

lineup that begins with “You Can’t Take It With You” (8 p.m.) and continues with “Night Flight” (10:15 p.m.), “Key Largo” (midnight), “The Gorgeous Hussy” (2 a.m.) and “Lone Star” (4 a.m.).

Daytime Talk

Kelly Ripa: Colbie Cailat, Mark Consuelos (rerun). The View: Patricka Heaton, Ellen page, Greta Gerwig, David Hartman, Mario Cantone, Arsenio Hall (rerun). The Talk: Jean Smart, Paul Carrick Brunson, Tabatha Coffey. Ellen DeGeneres: Dylan McDermott, Miranda Lambert (rerun).

Late Talk

David Letterman: Will Ferrell, Rufus Wainwright (rerun). Jimmy Kimmel: Lisa Kudrow, Rosemarie DeWitt, Trey Songz (rerun). Craig Ferguson: Steve Carell, Don Winslow (rerun). Tavis Smiley: Kristen Johnston (rerun). Chelsea Handler: Jeff daniels, Chris Franjola, Jen Kirkman, Ross Mathews, Dax Shepard (rerun).