Best Buy offers the Vizio SmartCast 38" 5.1-Channel Wireless Bluetooth Sound Bar with Subwoofer, model no. SB3851-D0, for $179.99. Pay with Visa Checkout to drop it to $154.99. With free shipping, that's $24 under our mention from three weeks ago and the lowest total price we've seen. (It's the best deal today by $25.) It features a 50Hz to 20kHz system frequency response, two satellite speakers, 5" wireless subwoofer, 802.11n wireless, Bluetooth 4.1, built-in Google Cast, compatibility with the Vizio SmartCast app (which allows you to control the soundbar via your mobile device), remote control with LCD, HDMI, USB, and auxiliary 3.5mm port.
Of note, this discount can only be used once per account.