Lena Dunham is everywhere. Following last week's guest appearance on ABC's "Scandal" and last night's Season 4 finale of "Girls," you can find her in this quirky documentary about Hilary Knight, the illustrator of the beloved "Eloise" books. The "Girls" star, who has an Eloise tattoo, produced the film, which deals with Knight's falling out with the books' author, Kay Thompson, a breach that separated him from his most famous work.

THE LATE LATE SHOW WITH JAMES CORDEN. 12:37 a.m. weeknights, CBS3.

Tonight's the first late night of many for British actor and writer James Corden, who succeeds Craig Ferguson in CBS' late, late-night hot seat. Story, Page 23.

FRONTLINE: VACCINE WAR. 10 p.m. Tuesday, WHYY12.

"Frontline" updates its 2010 report on the vaccine debate, noting that even more parents have opted against immunizing their children and looking at California's recent measles outbreak.

UNSUNG HOLLYWOOD. 9 p.m. Wednesday, TV One.

In the season finale, the docu-series looks at the 2001 film "Baby Boy," which helped further the career of "Empire" star Taraji P. Henson.

NASHVILLE: ON THE RECORD 2. 10 p.m. Wednesday, 6ABC.

If you watch "Nashville" for the music, not the soap, then this special, recorded at the Grand Ole Opry, is for you. It's all singing, no pouting (and an opportunity to hear actors/singers Clare Bowen and Sam Palladio's real accents). Reba McEntire makes a special appearance.

SIEGE OF MASADA. 9 p.m. Friday, Smithsonian.

Getting ahead of CBS' miniseries "The Dovekeepers," which begins March 31, is this one-hour documentary about the epic events that inspired the Alice Hoffman novel behind the CBS drama.

- Ellen Gray