The only progress bars I've seen working recently have been on the roSpringboardScreen when playing audio content. There's no documentation anywhere that I'm aware of indicating that there's supposed to be a progress bar on the roPosterScreen. It does look like there should be one on the episodic list styles, but the channels I've seen that use that style either have a big space where the progress bar should be, or a blue progress bar that takes up 99% of the available space regardless of the current play position. I'm not sure what the secret is to getting it to work, if indeed it does work any more.
