ehh, makes sense enough - the ZP orange box review showed that Valve never really quite got the grasp of episodic gaming to start with. And, let's be fair, I only remember 2 AAA games trying the episodic route - Sin Episodes, which never made it past the first "show", and this HL2 one, which never got the time thing right. Also, DLC became the huge thing, so that sort of replaced the need for episodic gaming outside of the Telltale-esque adventure crowd, which actually suits the episodic thingy more.