ABC Entertainment announces the return of television's biggest hit shows, including Boston Legal, Brothers and Sisters, Desperate Housewives, Grey's Anatomy, Lost, Samantha Who? and Ugly Betty.

Return dates and times are as follows:

Samantha Who? returns Monday, April 7 (9:30-10:00 p.m., ET) with six original episodes.

Boston Legal returns Tuesday, April 8 (10:00-11:00 p.m., ET) with six original episodes.

Desperate Housewives returns Sunday, April 13 (9:00-10:00 p.m., ET) with five original episodes and a special two-hour finale (seven hours total).

Brothers and Sisters returns Sunday, April 20 (10:00-11:00 p.m., ET) with four original episodes.

Ugly Betty returns Thursday, April 24 (8:00-9:00 p.m., ET) with five original episodes.

Grey's Anatomy returns Thursday, April 24 (9:00-10:00 p.m., ET) with five original episodes.

Lost will move to its new 10:00 p.m. time period on Thursday, April 24, with five weeks of original episodes.

Pushing Daisies, Private Practice and Dirty Sexy Money will return next season.