Valid points - however, most European countries have some form of national TV.
When i am abroad, i'm often annoyed with the dutch public TV digital online channels not being available, due to whatever IP issue causes it. Which i find quite absurd, since it's available for free within my country.
I would welcome a situation where i can watch British, German, French, Italian, Belgian and Dutch television stations online. If all countries open op public stations, i see it as win-win for everyone.
Commercial thinkers should realize i can only watch one TV channel at a time. The BBC will obviously put up the argument that 'everyone speaks English and not everyone speaks French or German, hence their audience is bigger and thus the market is skewed'. And while their may be some truth in that, the British tax-payer will not pay a penny more or less if half Europe watches their shows, since the cost is in creating them, not in distributing.
Likely, IP issues only play with purchased shows (overseas content, sports, etc). Everything produced by public broadcasters themselves - payed by taxpayers - will only profit from a bigger audience in my view.