http://tvline.com/2016/02/10/the-flash-supergirl-crossover-photo-grant-gustin-melissa-benoist/

Grant Gustin posted a pic of him and Melissa Benoist costume.

http://i1331.photobucket.com/albums/w594/JamesGrec3/Supergirl_zpshlplqqe1.png

http://www.tvinsider.com/article/80599/supergirl-the-flash-crossover-worlds-finest/

Although the CBS and CW superhero dramas (http://www.cinemablend.com/television/Supergirl-Go-Flash-Next-Here-What-Creator-Says-127077.html) share the same producers, they didn’t think they could pull it off this season. “It’s one of the most fun episodes of any of the shows we’ve ever done,” who serves as executive producer on both shows, as well as Arrow.

Really looking forward to this tonight.

Worth the wait.

http://www.hollywoodreporter.com/live-feed/tv-ratings-supergirl-jolted-by-878880

That’s 30% in the all-important 18-49 demo. About 7.2 million total viewers tuned in for last night’s event (http://forums.previously.tv/topic/41137-s01e18-worlds-finest/?view=getnewpost). PLUS: Supergirl boss was glad (http://www.tvinsider.com/article/82677/supergirl-boss-on-karas-personal-step-and-national-citys-newest-threat/) this wasn't a gimmick episode (http://forums.superherohype.com/showthread.php?t=509451): "She really needed him."