Discovery Comm promoted Scott Felenstein and Sharon O’Sullivan to evp, natl ad sales. Felenstein will lead the national ad sales teams for Discovery Channel, Science Channel, Velocity, Military Channel and Destination America and O’Sullivan will lead the national ad sales teams for TLC, Animal Planet, Investigation Discovery and Discovery Fit & Health. Scott Kohn was upped to svp, regional ad sales, overseeing the company’s Chicago, Atlanta and Detroit offices. — Craig Parks, formerly of IFC, joins Participant Media‘s yet-unnamed cable net as svp, digital & live programming. The net, which has 40mln HHs through the purchase of Documentary Channel and Halogen, is expected to launch this summer. — Jeannie Scalzo was promoted to svp, music sales, with oversight of MTV, MTV2, mtvU, VH1, VH1 Classic and Palladia. Ellen Dominus was upped to svp, ent sales, overseeing sales for CMT, Comedy Central, Spike and TV Land. — Patricia Betron, Wendell Scott and Lisa Valentino were upped to svps, Multimedia Sales for ESPN. As part of the realignment, Greg Rossi was upped to vp, Multimedia Sales and J ennifer Hoffnagle was promoted to vp, Multimedia Sales.