On the issue of the German 5% line, I fully support it. Just look at Weimar - democratic states are not there to act out the 'will of the people', but to keep all necessary institutions functioning - total democracy, with splinter parties and absurd coalitions, would make that an impossibility. We learned: We no longer have an Ersatz Kaiser, we have a much stronger parliament, and we have no splinter parties that are only out to damage the state. In this election, the 5% line kept the FDP (market liberals) and the AfD (anti-Euro right-wing populist asshats) out of the Bundestag. It may be undemocratic, but it keeps democracy working.
On the technical bits of the 5% line: In the elections, you give your first vote to a direct candidate (like a Congressman in the US, I guess) and your second vote (Zweitstimme) to a 'list', AKA a party. All the direct candidates, who usually are part of a list too, get into the Bundestag, and additional people from the lists get seats to make sure the composition of the Bundestag matches the shares of votes a list got via Zweitstimmen. However, if less than 5% of the Zweitstimmen go to a specific list, that list gets absolutely zero representatives except for direct mandates. (And apparently three direct mandates would get you there too, but direct mandates almost exclusively go to the big parties CDU and SPD - Hans-Christian Ströbele of the Greens being a notable exception. He, too, by the way, is an asshat.)
And yeah, we have broadcasting with public funds - they're responsible for 'old people' TV, quality crime fiction (Tatort rocks!), local news, live transmission of debates in the Bundestag that nobody in his right mind can stand to watch (Phoenix), general cultural stuff, and Arte, which is a hilariously weird German-French bilingual and bi-cultural station that has been described as "the station that everyone likes, but nobody watches". (It's awesome, and you should totally watch it.)
EDIT:
This describes Merkel's attitude perfectly.