I set up a content associative array and pass it to the springboardscreen object doing:
on this line I get an error (warning? doesn't pull up the debugger...) "BRIGHTSCRIPT: ERROR: roSpringboardScreen.SetContent: Failed to box a bsTVAL.: pkg:/source/appChannel.brs(166)"
bitrates = 
qualities = ["SD"]
urls = [streamUrl]
streamformat = "hls"
show.StreamBitrates = bitrates
show.StreamUrls = urls
show.StreamQualities = qualities
show.StreamFormat = streamformat