This 4K 4-port HDMI switch lets you watch multiple feeds at once w/ PiP for $21 ($9 off)

Dinger-US (99% positive feedback from 1,067) via Amazon offers its 4K 4-port HDMI Switch with Picture in Picture support for $20.99 when code Y6CZBV53 has been applied at checkout. You’ll score free shipping on orders over $25 or with a Prime membership. That’s good for $9 off the regular going rate and is the lowest price we’ve tracked. It carries a 4.4/5 star rating from 170 customers.

4-port HDMI Switch features:

• Connects up to 4 HDMI source components to a single HDMI input for transitions between gaming, television and more
• Support display resolutions up to 4K x 2k at 30Hz,1080P and 3D
• 4 x 1 HDMI switch compatible with a variety of devices: Xbox One, Ps4, Apple TV, more
• Xbox one, PS3/PS4, Fire TV stick, Fire TV, ROKU, Laptop, Apple TV and DVD players and other HDMI devices
• Picture in Picture feature allows you to easily make transitions to one device to another with a push of a button