The Panasonic TX-65CR852 has a screen size of 65", however the Sony KD-55SD8505 is only a unknown" TV (65" smaller).
The display diagonal of a TV is the most common measure of screen size and is the distance from the top left to the bottom right of the visible part of a TV screen excluding any frame or border. One of the most important considerations when choosing the right screen size for your TV is the typical distance from which you will be viewing the screen.
A good rule of thumb is to multiply the display diagonal by 2.5 to determine the viewing distance. So a 40 inch TV is best viewed from 100 inches away, which is equivalent to 8.3 feet or 2.54m.
For home cinema setups and a truly immersive experience this ratio can be reduced to 1.2. This will give a screen size that fills 40 degrees of the viewer's field of vision. So if you viewing from a distance of 6ft (72 inches) you would need a TV display diagonal of 60 inches.
TVs with a bigger display diagonal allow you to make the most of HD content and are great for watching movies.
1,600Hz faster motion interpolation frequency
The Panasonic TX-65CR852 has a motion interpolation frequency of 1,600Hz, whereas the Sony KD-55SD8505 is only a unknownHz motion interpolation frequency TV (1,600Hz slower).
The motion interpolation frequency is the frame rate which the TV is able to artificially create by inserting additional frames into the picture between the frames included in the original video source. Motion interpolation technology can sometimes create some unwanted side effects such glitches when the technology suddenly activates during an action scene. Most modern TVs will have an option to switch off the motion interpolation if it is not desired.
A faster motion interpolation frequency will result in smoother action scenes, less motion blur and a more life like image.
40W higher RMS rated power
The Panasonic TX-65CR852 is a 40W RMS rated power TV. That's 40W higher than the Sony KD-55SD8505 (unknownW).
RMS rated power stands for Root Mean Square rated power and it is typically used to measure the power output of the audio element of the TV.
A higher RMS rated power means that the audio system on the TV is more powerful and will be able to play the audio at higher volumes. A higher RMS power may also result in better quality audio at normal volume levels.
1.3 newer common interface plus (CI+) version
The Panasonic TX-65CR852 is a 1.3 common interface plus (CI+) version TV. That's 1.3 newer than the Sony KD-55SD8505 (unknown).
2 Reasons For
Cheaper by £409
The Sony KD-55SD8505 is £409 cheaper than the Panasonic TX-65CR852.
21 shops are selling it
A greater number of shops increases the price competition amongst retailers for the product and also increases the chances of this TV remaining in stock.
3 Reasons Against
More expensive by £409
The Panasonic TX-65CR852 is £409 more expensive than the Sony KD-55SD8505.
Not as many stockists
The Panasonic TX-65CR852 is only stocked by 6 stores, however the Sony KD-55SD8505 is stocked by 27 retailers.
Fewer numbers of shops reduces the chances of the product remaining in stock and also reduces the price competition amongst retailers for this TV.
Older by four months
The Panasonic TX-65CR852 is four months older than the Sony KD-55SD8505.