After the rebooted version of “Whose Line Is It Anyway?” secured solid ratings for the net, the CW has invested in a second season of the improv comedy show, ordering 24 new halfhour episodes.

“It’s clear that viewers are as excited to have ‘Whose Line’ back on the air as we are,” said CW topper Mark Pedowitz. “We have wanted to bring comedy back to The CW for a long time, and Aisha, Wayne, Colin and Ryan have brought funny to the network in a big way. We’re very excited to have them back for another season.”

“Whose Line,” which initially ran for eight seasons on ABC, bowed on the CW earlier this month, with its preem episode delivering the CW its most viewers in five years in its timeslot. “Whose Line” airs Tuesday nights at 8 p.m.

“Whose Line” is produced by Angst Prods. and Hat Trick Prods., with Dan Patterson, Mark Leveson, Jimmy Mulville, Ryan Stiles and Wayne Brady exec producing.

Also on Monday, CW tweaked some of its fall premiere dates, allowing for more time between each of its three rookie dramas.

“The Vampire Diaries” spinoff “The Originals,” previously skedded to premiere Oct. 15 in its regular Tuesday timeslot, will now bow behind “Vampire Diaries” on Oct. 3, with “VD” moving up its premiere date by a week. This will give “Originals” its best possible lead-in before its takes over its Tuesday 8 p.m. slot on Oct. 8.

“Supernatural,” which will follow “The Originals” on Tuesdays, will now start its season on Oct. 8, following that timeslot debut of “Originals.”

And Thursday drama “Reign” will now premiere on Oct. 17 following “The Vampire Diaries” — ensuring that it won’t face Fox’s “Glee,” which is expected to be pre-empted that night for postseason baseball.

As a result of the changes, CW’s series premieres will be spaced out so that they each have their own week in the spotlight: “The Originals” on Oct. 3, “Tomorrow People” on Oct. 9 and “Reign” on Oct. 17.

Rick Kissell contributed to this report.