Worldwide Biggies, former Nick pres Albie Hecht’s digital ent studio, hired ex-Nick and Oxygen exec Scott Webb as Chief Creative Officer. Ex-Nick Online vp Christopher Romero joins as CTO. Former MTVN domestic CFO Robert Gibilterra becomes CFO. — Retirement Living TV named G4 founder Charles Hirschhorn chief creative officer. Retired Time Warner programming head Fred Dressler is a partner and board member. — Turner appointed Vicki Hamilton svp, enterprise performance. — Comcast named Jay Kreiling vp, video services and Kim Vignola vp, research, entertainment group.