Sony SMP-N200 functions while in activity

just bought a sony smp-n200 streamer and trying to add it to my h1, I am using the harmony member web site to program the h1. when i put the sony model 3 in it comes up as media center pc. I have added an activity consisting of watching the sony streamer with my tv, but as i progress thru the steps basic questions are NOT asked like what device controls the volume, so when i choose my activity on the h1 the streamer, my tv and my dvd player show up????? but i can't increase volume unless i go to devices first and select tv. Is the a better choice for this streamer rather than the h1 thinking it is a media center pc?