NEW YORK (Standard&Poor's) Aug. 21, 2012--Standard&Poor's Ratings Services said today that its rating on Sirius XM Radio Inc. (BB/Stable/--) is not currently affected by Liberty Media Corp.'s announcement of its plan to increase its stake in Sirius XM to more than 50% from 48%, subject to Federal Communications Commission approval. The increase in its holdings would give control of Sirius XM to Liberty Media. There is significant uncertainty in relation to the financial policy that Liberty would pursue if it controls the board of Sirius XM. Sirius XM's gross debt to EBITDA, pro forma for the announced redemption of its 9.75% senior secured notes and 13% senior notes, declined to 3.0x as of June 30, 2012