Television advertising in UK shows different dynamics for national channels and multichannel, as reflected in this table. It provides net advertising revenues (NAR) and net advertising market shares, split between 'national' and 'multichannel' television. National channels in UK are defined as incumbent, free-to-view, nationwide, general-interest channels. The exact list of channels included in this category (generally 3 to 6) in each market, is given in a note. 'Multichannel' is an aggregate which refers to the NAR all other channels in UK apart from the national channels defined above, whatever their distribution (cable, terrestrial, satellite, IPTV, mobile, online), transmission mode (analogue or digital) or business model (pay or free-to-air).