TVRO – TeleVision Receive Only

TVRO was the first satellite system available for home viewing of satellite TV. It required a relatively big dish of 3 to 6 feet in diameter and worked in C-Band. Frequencies of around 4 G Hertz are called C-Band and require bigger dishes because the wave length of these frequencies is longer than in Ku-Band which requires a much smaller dish of about 18 inches. Ku-Band is at 12 to 14 G Hertz.
TVRO systems also need a movable dish because it needs to get all the channels of many satellites. C-Band satellites have much less channels available than Ku-Band satellites and therefore more satellites are needed to provide enough channels. Possibilities that exist with TVRO systems is that you can also receive free channels and independent feeds from for instance news companies. You could for instance receive the unedited material that is broadcasted from a news crew somewhere in the coverage area of the satellite. They transmit their materials to their headquarters using a C-Band satellite. Many of these types of feeds are not scrambled and are available to everyone with the proper equipment.
TVRO systems are often referred to as Big Dish TV, C-Band Satellite TV and BUD (Big Ugly Dish).