Former FCC chmn Michael Powell has joined Providence Equity Partners as a sr adviser on technology and regulatory issues in media and communications. The buyout firm manages funds with more than $9bln in equity commitments. Significant investments include MGM, Nextel, PanAmSat and Bresnan Broadband. — Former Voyant exec James McGann was named vp, Charter Business. — Knology upped M. Todd Holt to CFO.