Sorry for the late reply.
There is no surefire way to prevent assassinations, and a well placed sniper could easily put a bullet through them.(Which, in my opinion, is easier than humans, due to their larger cross section. But that doesn't matters.) And they could also have suicide-bombing operatives closing in the Royal Family's location.
But I'm sure there should be some kind of high-techy thingy to circumvent this in the future. Or maybe the technology has gone so advanced that it doesn't matter to whether the King is in open view for an assassination to occur? Your choice to solving this matter.
I would say it is more realistic for the TVs citywide to have different Link Ring connection, not just the Royal Family. There should be a fair amount of commercials, unless, of course, the TV is provided by the government.
(A small bit of improvement, however, would be to implement different kind of Link Rings. I do believe that there are some lions/tigers, especially humans, who doesn't like to wear a collar.)
The good about this? I would say that this is an extremely original idea. Unpolished, but original.
The bad? Some plot holes here and there, easily filled, but requires attention. And grammar/spelling. You might want to consider finding someone to beta your work.(Or use the auto-correct feature in Word. I tried once without it, and my beta complained immediately. This is, however, not an excuse to not improve your spelling.)
However, full analysis is impossible until this thing progress on. So far, I've only seen the prologue, and what comes after is what determines if this is a good story or not. (This probably tells you that I put a lot of emphasis on plot. I'm indeed biased.
)
Overall, it is still inconclusive in whether this story is good or bad. The problems I've seen so far are small or easily solved problems. However, I have not seen enough to find any good parts except for your idea (Which already scored you quite a lot of marks, mind you. As it counts towards the plot part.). At this stage, I can only point out mistakes as I come upon them(Some of them, however, may be only my opinion.)
Anyway, I cannot give you a mark yet. I must see more of this, before I can make up my mind. So sorry 'bout that, mate. Hope you do write more though. Although I cannot gauge your piece now, I do indeed hope that more chapters will arrive in the future.
... Of course, with better grammar/spelling and a coherent plot as well.