At face value, from a tuner point of view it may look as though the performance requirements are similar.  However, dig a little more deeply and all of sudden, there are some significant differences.  Very often, these are due to system requirements that have been requested by broadcasters.  For example, in a city environment, the fading channel conditions may be very severe and the television manufacturer necessarily will want to ensure that the tuner is able to cope.  In some geographies, adjacent channel interference may be problematic. 

Let’s take a look at a specific example.  In Europe, the next generation of mobile phones will use a new transmission scheme called LTE800.  The ceasing of analogue TV in Europe has allowed the authorities to sell some of the spectrum for use by cellular phone operators.  In the case of LTE800, the basestation may be transmitting very high power signals very close to the upper end of the TV band.  Elonics has developed LTEGuard™ technology to ensure that its latest generation  silicon tuners do not get corrupted by this interference.