Reference: Fataawa an-Nadthar wal-Khulwah wal-Ikhtilaat – Page 7
Question: What is the ruling regarding looking at a woman (ajnabiyyah – someone who he is not a mahram to) and [similarly] a woman (ajnabiyyah) looking at a man whilst watching television?
Response: It is not permissible because generally that which one sees of women on the television are without hijaab and revealing some of their ‘awrah; and regarding the men, that they too are beautified and the effect of this is a fitnah, leading to evil in general.
And with Allaah lies all success and may Allaah send prayers and salutations upon our Prophet Muhammad ﷺ and his family and his companions.