That episode's a repeat from 2007. That hand came up in this longer post about forward motion / binding action at the WSOP
FWIW, here's Phil Laak's blog analysing the hand:
Cliff notes from the above:
- In a Vegas
casino (other than the one HSP is filmed in), there's absolutely nothing wrong with what Todd Brunson did. Brunson usually plays in Vegas casinos
- In LA
(like the ones Laak often plays in) the "forward motion" rule is enforced in about half the casinos, and there would've been something wrong with Brunson's actions if he was playing at one of them.