There are tons of Android tablets on the market but only a few allow you to hook them up to your television with HDMI.
Kindle Fire 16 GB with HDMI is the best buy of all tablets on the market due to price and the quality of components. Amazon loses money on every Kindle Fire sold. At $199 its hard to beat.
Acer Iconia TAB A100-07U08U 7-Inch Tablet (8GB) is a great value with the older honeycomb operating system for Android.
9.7 Inch capacitive Tablet PC Android 4.0, 10 points multi-touch Wifi, HDMI, 1.5 GHz, 1GB DDR3
Tivax MiTraveler10D 10 Inch PC Google Android 4.0 Tablet
This is the best value for the money. A large ten (10) inch tablet for under $150.
Magic TV Software