Please don't go by what was once a generally accepted opinion. Have you actually checked the Panasonic IPS LCD and LEDs? If not I'd suggest you do that before passing such comments in an advice thread.
Yes i have seen their lcds and plasma,while it may look good for you,that won't be the case for everyone.
The lack of contrast is evident,you can clearly see the poor blacks more like a dark grey even in day time same goes to the sony EX410 with a lg IPS panel which has blue tint to dark grey.
While the SPVA based tvs such as samsung and sony one can only notice the blacks are dark grey in night time ,meaning such is the level of blacks that these VA based tvs deliver resulting higher contrast resulting more depth in the image,matching or surpassing the blacks delivered by plasma from samsung and lg,only the panasonic FHD plasma have the edge over VA based non local dimming lcd.
.