CBS is effectively ending the 2011-12 season for its ongoing series early, scheduling several season finales well before the final day of sweeps May 23.

The Eye feels that with only so many original episodes per program, it gets more value by airing them before the Daylight Savings Time change, when overall viewership levels go down, and by bunching fresh episodes together rather than interspersing repeats.

That’s true in particular for serialized Sunday drama “The Good Wife,” which will wrap on April 29. Sunday reality stalwart “The Amazing Race” will conclude with a two-hour season finale May 6.

Freshman comedy “2 Broke Girls” will conclude with an hourlong episode May 7, paving the way for Monday companions “How I Met Your Mother,” “Two and a Half Men,” “Mike & Molly” and “Hawaii Five-0” to end their seasons May 14. The “Mother” season finale will also be one hour.

For Tuesday programs, CBS 10 p.m. bubble show “Unforgettable” will have its season finale May 8, and then a week later, “NCIS” and “NCIS: Los Angeles” will call it a year, with the latter a two-hour finale.

“CSI” ends its 12th season May 9, with Wednesday cohort “Criminal Minds” going the two-hour route for its season-seven finale May 16.

Dominant Thursday comedy “The Big Bang Theory” will have its final episode of the year May 10, a week before “Rules of Engagement,” “Person of Interest” and “The Mentalist” say goodbye to 2011-12 on May 17, the final day of originals this season for CBS.

CBS’ Friday series “Undercover Boss,” “CSI: NY” and “Blue Bloods” have had their season finales set for May 11, while “Survivor” will conclude its 24th cycle May 13 with a two-hour finale, followed by an hourlong live reunion show.

CBS will fill out its post-May 17 sweeps schedule in part with specials and films, such as the eighth “Jesse Stone” telepic starring Tom Selleck and scheduled for May 20.