Sunday, Seven, 10pm
Six seasons in and the romantic chemistry between hardened detective Beckett (Stana Katic) and nd writer Castle (Nathan Fillion, right) has givenen way to declarations of love. Tonight’s episode kicks off with some cute and comical banter between the couple as they discuss which season is best t to get married in. But there’s still a crime to o be solved amid the love bubble. Beckett and d Castle investigate the murder of a record store clerk who lived a secret life as a hacker. er. When they dig deeper into the case, they uncover a link between the deceased man and Castle’s estranged father (played by James Brolin), a self-proclaimed spy.