In 2020, the TSS 2470II Variable Time Delay was released, adding flexible playout control to the basic set-and-forget 2470 Network Time Delay. By 2021 360 Systems added another model to the Time Delay line-up, the dual channel TSS – 2470 DualZone Time Delay. DualZone provides two independent playout channels to serve two different time zones or allow independent cue and review of the delayed feed.