This week, 3 Media stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Charter Communications, Inc. Class A (CHTR) earns a B this week, jumping up from last week’s grade of C. Charter Communications, Inc. Class A is a provider of traditional cable video programming (basic and digital video), high-speed Internet services, and telephone services for residential and commercial customers. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of CHTR stock.

Sinclair Broadcast Group, Inc. Class A (SBGI) is seeing ratings go up from a B last week to a A this week. Sinclair Broadcast Group, Inc. Class A is a television broadcasting company that owns or provides programming, operating, or sales services to television stations in the United States. The company also gets A’s in operating margin growth, earnings revisions, earnings surprise, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of SBGI stock.

This week, New York Times Company Class A (NYT) pushes up from a C to a B rating. New York Times Company Class A publishes daily newspapers and operates Internet websites. The company also gets A’s in earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of NYT stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.