Thumb Score: +27 TiVo sent me an email about a $50 off deal for a ChannelMaster outdoor TV antenna. Regular price is $89. With the coupon code TIVO the sell price is $39. Free shipping and no tax in NJ. Per website : The ULTRAtenna is a 4-bay, phased array, multi-directional outdoor antenna that receives high definition and digital signals from a span of 180 degrees.