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Here is the WeaKnees TiVo Roamio Comparison Guide.

  

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TiVo Roamio DVRs - Compare Models
Name TiVo Roamio (and Roamio OTA)
 TiVo Roamio Plus TiVo Roamio Pro
Features
(Important differences bolded)

TiVo Roamio
Click to enlarge

TiVo Roamio Plus
Click to enlarge

TiVo Roamio Pro
Click to enlarge
Model Number TCD846500 (TCD846510, TCD846000) TCD848000 TCD840300
Input Sources

Roamio: Digital Cable (requires CableCARD) *OR*
Digital Antenna (ATSC)
(no satellite input; cannot accept digital cable AND off-air)

Roamio OTA: Digital Antenna ONLY

Digital Cable (requires CableCARD)
(no satellite input)

Digital Cable (requires CableCARD)
(no satellite input)
Number of Tuners 4 Tuners Concurrently Active 6 Tuners Concurrently Active 6 Tuners Concurrently Active
Compatible with TiVo Mini Yes Yes Yes
Output Resolutions Digital Cable 480i, 480p, 720p, 1080i, 1080p/24/60 480i, 480p, 720p, 1080i, 1080p/24/60 480i, 480p, 720p, 1080i, 1080p/24/60
Output Resolutions Digital Antenna 480i, 480p, 720p, 1080i, 1080p N/A N/A
Factory Capacity 500 GB to 1 TB
(up to 75 HD hours) 		1 TB
(up to 150 HD hours) 		3 TB
(up to 450 HD hours)
WeaKnees Maximum Upgrade Up to 20 TB 20TB Up to 20 TB 20TB Up to 20 TB 20TB
CableCARD slots 1, on bottom of box (none on OTA) 1, in back 1, in back
Audio

1 - Optical Digital Audio
1 - embedded in HDMI
1 - Composite (via breakout composite cable, sold separately)

 1 - Optical Digital Audio
1 - embedded in HDMI
1 - RCA A/V jacks

1 - Optical Digital Audio
1 - embedded in HDMI
1 - RCA A/V jacks
Video

1 - HDMI (v1.3)
1 - Composite (via breakout composite cable, sold separately)

1 - HDMI (v1.3)
1 - Composite
1 - Component

1 - HDMI (v1.3)
1 - Composite
1 - Component
Networking

On-board Ethernet (10/100)
On-board Wireless (802.11a/b/g/n)
MoCA Bridge (requires optional adapter)

Ethernet, MoCA, or WiFi is required. Cannot be connected through phone line

On-board Ethernet (10/100/1000)
On-board Wireless (802.11a/b/g/n)
On-board MoCA bridge

Ethernet, MoCA, or WiFi is required. Cannot be connected through phone line

On-board Ethernet (10/100/1000)
On-board Wireless (802.11a/b/g/n)
On-board MoCA bridge

Ethernet, MoCA, or WiFi is required. Cannot be connected through phone line
Remote TiVo Roamio RF Remote
 TiVo Roamio RF Remote
Remote Finder		 TiVo Roamio RF Remote
Remote Finder
Mobile Streaming In or Out of Home: Requires optional TiVo Stream In or Out of Home: On Board Streaming to compatible phones/tablets In or Out of Home: On Board Streaming to compatible phones/tablets
Dimensions 14.3" W x 7.4" D x 1.9" H 16.5" W x 9.7" D x 2.4" H 16.5" W x 9.7" D x 2.4" H
Buttons on Unit None Resolution button on back Resolution button on back
Included Cables Power Only. HDMI, Ethernet, optical, composite breakout sold separately. Power Only. HDMI, Ethernet, composite, component, optical separately. Power Only. HDMI, Ethernet, composite, component, optical separately.
Compatible with TiVo Stream Yes N/A. Built-In. N/A. Built-In.


To compare the Series4 TiVo Premiere units to the Series3 TiVo DVRs, see our older HD TiVo for Cable Comparison.
To compare the Series4 TiVo Premiere units, see our TiVo Premiere Comparison Guide.


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