Actually, the Yarrow algorithm, among others, will generate a cryptographically secure PRNG that satisfies the next-bit test for statistical randomness, for instance in generating keys.
In addition, TRNG of various sorts are in use for gaming and other applications, I believe they usually use radioactive decay states as a source for genuinely random and unpredictable sourcing.
Now if you will excuse me, I dvr'ed Psych.