Television in Scotland 4, and Channel 5, whose broadcast coverage is more limited, and in very remote areas difficult or impossible to receive. Scotland has its own BBC Scotland services, BBC One Scotland and BBC Two Scotland, which commenced broadcasting on 14 March 1952 and 20 April 1964 respectively. Much of the output of BBC Scotland Television, such as news and current affairs programmes, and the Glasgow-based soap opera, "River City", are intended for broadcast within Scotland, whilst others, such as drama and comedy programmes, aim at audiences throughout the UK and further afield. Sports coverage also differs, reflecting the fact that the
Demographic history of Scotland expense of forest from about 2000 BCuntil the time of the Roman advance into lowland Scotland in the first century AD, suggesting an expanding settled population. Thereafter, there was regrowth of birch, oak and hazel for some 500 years, suggesting that the Roman invasions had a negative impact on the native population. There are almost no written sources from which to reconstruct the demography of early medieval Scotland. Estimates have been made of a population of 10,000 in Dál Riata and 80–100,000 for Pictland, which was probably the largest region. It is likely that the fifth and sixth centuries saw