In the east of England , the areas of Basildon , Thurrock , and Havering are served by the Crystal Palace .
Both of these TV transmitters came into full service on , July 20 , 2011 , the Rouncefall transmitter being 4 kiloWatts E.R.P . ( Effective Radiated Power ) is receivable over most of south east Essex , However , viewers in Southend-on-sea , Canvey Island , Basildon , Thurrock , Haveringand the rest of south Essex and south Hertfordshire are served better by the Crystal Palace only , a few households , London and Bluebell Hill/Dover , Kent TV transmitters .
East of England