NEW YORK (Standard&Poor's) Jan. 8, 2013--Standard&Poor's Ratings Services today assigned its 'BBB+' issue-level rating to Philadelphia-based broadband cable TV operator and media and entertainment provider Comcast Corp.'s proposed senior notes issue of an unspecified amount, consisting of three maturities: 2023, 2033, and 2043. Existing ratings on the company, including the 'BBB+' long-term and 'A-2' short-term corporate credit ratings, remain unchanged. The long-term rating outlook is stable. We assume that pro forma for the new debt issuance, leverage will remain in the low- to mid-2x area. The ratings reflect Comcast's strong business position as the largest cable TV operator in the U.S., with 22 million video customers as of Sept. 30, 2012, and a cable operating cash