NEW YORK (AP) — NBC’s Olympics coverage online has evolved over the years. In the beginning, NBC was worried about interfering with broadcast coverage — its own and those of others. Broadcast rights are sold by territory so Europeans aren’t supposed to have access to NBC’s video. Tools for restricting content by territory have improved, while NBC got new owners — Comcast Corp. Now, NBC sees the Internet as complementary to its television broadcasts.

Here’s a look at the evolution of Olympics video online: