Long Ellis has been tapped chief operating officer, MTV Networks ad sales. He was VP, national advertising sales, Comedy Central.Lou Stellato has been promoted to VP of MTV2 production. He has held production and writing positions at MTV, VH1, Comedy Central and Nickelodeon. Kristin Frank has been named senior VP of multiplatform distribution and marketing for Logo, MTV Networks’ new channel devoted to gay, lesbian, bisexual and transgender programming. She served as regional veep for the Northeast region.