<div class="bbWrapper">I just posted a question to the Dish support thread, since I can't find any manufacturer named Netcast, and these models are the same model numbers as LG sets. <br />
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<a href="https://support.dish.com/viewtopic.php?f=9&t=10556&p=59470" target="_blank" class="link link--external link--favicon link--favicon--before" style="background-image:url('https://www.google.com/s2/favicons?domain=support.dish.com');" rel="nofollow ugc noopener">https://support.dish.com/viewtopic.php?f=9&t=10556&p=59470</a> (reproduced below)<br />
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LG TVs have NetCast software on them (<a href="http://www.lg.com/us/netcast/index.jsp" target="_blank" class="link link--external link--favicon link--favicon--before" style="background-image:url('https://www.google.com/s2/favicons?domain=www.lg.com');" rel="nofollow ugc noopener">http://www.lg.com/us/netcast/index.jsp</a>), particularly the models you listed as "NetCast":<br />
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LG LB5800 <a href="http://www.lg.com/us/tvs/lg-32LB5800-led-tv" target="_blank" class="link link--external link--favicon link--favicon--before" style="background-image:url('https://www.google.com/s2/favicons?domain=www.lg.com');" rel="nofollow ugc noopener">http://www.lg.com/us/tvs/lg-32LB5800-led-tv</a> (comes in the same sizes listed, 32/39/42/47) <br />
LG LB6100 <a href="http://www.lg.com/us/support-product/lg-47LB6100" target="_blank" class="link link--external link--favicon link--favicon--before" style="background-image:url('https://www.google.com/s2/favicons?domain=www.lg.com');" rel="nofollow ugc noopener">http://www.lg.com/us/support-product/lg-47LB6100</a> (comes in same size listed, 47/50/55/60)<br />
LG LB6190 <a href="http://www.lg.com/us/tvs/lg-65LB6190-led-tv" target="_blank" class="link link--external link--favicon link--favicon--before" style="background-image:url('https://www.google.com/s2/favicons?domain=www.lg.com');" rel="nofollow ugc noopener">http://www.lg.com/us/tvs/lg-65LB6190-led-tv</a></div>