Fox enjoyed its highest-rated Tuesday prime with entertainment programming in a year and a half, based on live+7 figures, thanks to the premiere of the drama series “Prison Break” on April 4.

The network announced that the broadcast was the night’s No. 1 scripted show. “Prison Break” did well in delayed viewing, posting a 53% gain from Live+Same Day to chalk up a 2.3 average rating in the key 18-49 demo in L+7.

Fox posted its highest-rated Tuesday night with entertainment programming since Oct. 6, 2015, with a 1.9 average in L+7. The premiere of “Prison Break” was Fox’s highest-rated Tuesday entertainment telecast since Sept. 29, 2015.

Breaking down the L+7 numbers for the week ending April 9, Fox’s “Empire” was the week’s highest-rated drama with a 3.5 average. Among scripted programs “Empire” trailed only the CBS comedy “The Big Bang Theory” with a 4.2. Both shows posted big gains in delayed viewing, with “Empire” rising 59% in L+7 while “Big Bang” was up 56%.

The biggest gainer of the week in L+7 among the top shows was ABC’s “Designated Survivor,” which surged 136% to a 2.6 average in 18-49. Other ABC programs also posted big gains in delayed viewing, with “Grey’s Anatomy” up 76% to a 3.0 and “Modern Family” rising 74% to a 3.3.