Missing Component Pieces from a PCB
They could be parts that are used for a different TV or some other product, they could be parts that were in the original design, but later deemed unnecessary.  It could also be a cost saving measure (two parts in parallel in case two lower value parts were cheaper than a higher value part).

The board might work if you add those components back in, or it might stop working if those components are put in.  It is difficult to tell without reverse engineering the whole thing.