Bestbuy offers Rocketfish - Full-Motion TV Wall Mount for Most 40" - 75" TVs - Black for $99.99 (orig. $199.99) with free shipping.

Product Description:
Choose your viewing angle on this Rocketfish full-motion TV wall mount. A 23-inch articulating arm moves the television away from the wall, and a 50-degree swivel mechanism offers multiple positioning options. VirtualAxis tilt technology allows simple adjustments from +5 to -15 degrees. This Rocketfish full-motion TV wall mount holds 40-inch to 75-inch flat-screen TVs for versatility. 

• Compatible with most 40" - 75" TVs
  Up to 100 lbs. for sturdy support.
• Keep unsightly cables and cords concealed
  Built-in wire management makes it easy to achieve a neat, clutter-free TV setup, without visible cable tangles.
• Tilt, swivel, leveling and depth capabilities
  Let you adjust the viewing angle to suit your preferences.
• Mounting hardware
  Makes installation simple.
• 
  *To obtain additional screws for your product, please call 1-800-620-2790.
• VESA Compliant
  Including VESA mounting patterns from 100mm x 100mm to 600mm x 400mm for compatibility with a wide range of TVs.
• UL Certified
  Safety tested and UL certified.