TiVo offers its TiVo Bolt+ 3TB DVR & Media Streamer with All-In Service Plan for $799.98 with free shipping. That's at least $300 less than you'd spend if you bought this device elsewhere and activated the service plan. (For further comparison, just the service plan usually costs $550.) It's compatible with cable only (it won't work with HD antennas) and features 4K streaming, six tuners, room for up to 450 hours of recorded HD programming, and viewing via mobile devices.

Note: Make sure you active the TiVo Bolt+ before June 30 to receive the discounted All-In Service Plan, which replaces the need for a monthly or yearly service fee for the entire lifespan of this device. (Service typically costs $14.99 per month or $149.99 per year.)