Portable TVs
The big black box in the corner of the living room isn't the only way to enjoy your favourite shows. A portable television is generally any television with its own aerial and so can be used to describe anything from a 14” CRT to a tiny 2” device with a TFT screen. The speakers on a portable television are usually built-in and front mounted. Due to the small size of the devices they are generally not very powerful but there is nearly always provision for using headphones. Portable devices are also now been made with integrated DVD players or radios and most new portable televisions, especially those with LCD screens support the reception of digital signals. As LCD and OLED technology progresses so power consumption decreases and battery powered portable televisions are able to last longer and longer. As mobile telephones and PDAs develop into true multifunction, multimedia gadgets they will begin to include provision for television reception. For this end the two digital broadcast standards DVB-H and DMB were developed. Until digital television is fully rolled out a device supporting both analogue and digital signals will be the safest option, at the moment, the aerials of many small televisions are just now sensitive enough to pick up a good digital signal.