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→Selecting the Right Television
The optimal viewing distances at which the human eye can best process the details in a HDTV resolution of 1080 is called the [https://en.wikipedia.org/wiki/Bernard_J._Lechner#Lechner_distance Lechner distance]. According to Lechner the average home viewer sits 9 ft (2.7 m) from the TV and an optimum 1080 TV size at this distance would be 69 inches (180 cm). The optimal viewing distance to a 42 inch (110 cm) 1080 HD TV would be 5.5 feet (170 cm).
In practice it's probably easiest to figure out the location of the TV and seating arrangement in the cabin, and use the viewing distance to select an optimal TV sizefrom Table 1 or 2 below.<ref>http://ca.rtings.com/tv/learn/size-to-distance-relationship</ref>
<table width="25%" border ="1">
<caption>Table 1 - 1080p Resolution</caption><tr><th colspan="2">Viewing Distance</th><th>TV Size<br>1080p</th></tr>
<tr><th>feet</th><th>metres</th><th>inches</th></tr>
<tr><td>4.5</td><td>1.37</td><td>32</td></tr>
<tr><td>9.5</td><td>2.90</td><td>70</td></tr>
<tr><td>10.5</td><td>3.20</td><td>75</td></tr>
</table>
<table width="25%" border ="1">
<caption>Table 2 - 720p Resolution</caption>
<tr><th colspan="2">Viewing Distance</th><th>TV Size</th></tr>
<tr><th>feet</th><th>metres</th><th>inches</th></tr>
<tr><td>6.5</td><td>1.98</td><td>32</td></tr>
<tr><td>7.0</td><td>2.13</td><td>37</td></tr>
<tr><td>8.0</td><td>2.44</td><td>42</td></tr>
<tr><td>8.5</td><td>2.59</td><td>46</td></tr>
<tr><td>9.5</td><td>2.90</td><td>50</td></tr>
<tr><td>10.5</td><td>2.20</td><td>55</td></tr>
<tr><td>11.5</td><td>3.51</td><td>60</td></tr>
<tr><td>12.2</td><td>3.73</td><td>65</td></tr>
</table>