For TNT, a big push on original series More and more it's challenging the broadcast networks, and at this upfront it will up the ante with a slew of new original series   Hot girl: 'Zoey' bests NBA hoopsters Nickelodeon teen finale draws 5.1 million viewers, leading cable for the week over basketball and even post-Vanity Fair 'Hannah'   For A&E, finding the drama in real life Network pushes into more original series, scripted and reality, with a harder edge as it works to grow its audience numbers   For Nick at Nite, it's about the kids too Subtle shift at the Nickelodeon primetime network toward shows adults and their kids watch together, with a hefty ratings boost   The penultimate DVR zapper: Movies Study: 98.4 percent of households watch them live, just behind news and topping sports. Nick at Nite has highest C3 retention.   For Discovery, returning to its mission Tapping back into its roots as a science network as it heads into the upfront, after drifting off into general interest programming   For Animal Planet, it's not just critters Aiming to grow, network is shifting its focus to shows about the connection between people and animals and the bonds that grow   For Food Network, adding to the stew Network has pumped up primetime with reality shows, and more are coming, but daytime's the focus as it heads into the upfront   Movie studios launching pay channel Plan to deliver films and TV series to viewers, competing directly with Showtime and HBO. Partners: Viacom, MGM, Lion's Gate.   For Spike, pursuit of the elusive male After some weaves and wobbles, it's found its way as a network for young men, and it's adding more original series to that end next >>