Amazon has launched Fire TV Channels, a new hub for free, ad-supported TV (FAST).
The tech giant made the announcement during itsNewFrontspresentation to advertisers at New Yorks Lincoln Center.
Stewart is becoming a NewFronts regular, having done business last spring with Roku and appeared at its event.
Fire TV Channels is a dedicated home for programming that has already been drawing an audience on Fire TV.
The NewFronts pitch to ad buyers is Amazons second.
Last week, Amazon reported a 21% year-over-year rise in overall advertising revenue, to $9.5 billion.
