With no knowledge ahead of time, I watched my taped version of last night's CSI (the original).

I had had a fun night out, much longer than usual and had settled in for a later night watching my

VHS tape of the evening's prime time line up. 

CSI was interesting, weird, and started with a more than usual disturbing scene - someone accidentally (?) set on fire in the police station (here we suspend belief and accept that a potential suspect would be questioned in the fornesics lab). 

Investigating the incident, where the suspect, when tasered, went up like a bonfire, the team recreated the event trying to figure out why the fire occured - inebriated suspect? faulty taser? ingredients of the pepper spray adminsitered prior to the tasing?

A 3rd party phone video of the action gave new info - that the pepper spray used was not from a standard police issue bottle, but by a banned older model that has a flammable quality to it. 

So the CSIs then go into the lab to try to recreate that, spraying the older pepper spray on a dummy and then tasering it, and VOILA, it lights up like a roman candle!

You still with me?  As this experiment is done, in the background are two guys in lab coats, and I'll be damned if they aren't Adam and Jamie, the former hollywood special effects guys who are now hosts of their own Discovery show, the MythBusters!  Freaking hilarious!  They then replay the experiment and in the slow-mo, you more clearly see the two of them, big grins on their faces, and Jamie gives a big thumbs up that the experiment played out as expected.  Great cameo, congrats to CBS for having the originality to do something fun like that!