So is this a "commercial" or is it "viral"?

Good program. Good PR. I'm glad they are doing this, and it will start to help to repair the Davis police's reputation after the recent pepper spraying of protesters.
That said. I have no problem with them issuing warnings or citations for people riding on the streets without lights or proper reflectors. Hopefully the viral video will have a broader positive effect than citations.
Another thing police could do with any sort of 'not up to code' violation, would be to issue a citation, but wave the fee if you can demonstrate that you have fixed the problem within 30 days.. for example, by mailing in a copy of the receipt for a bike light.

lyrics

Bugger The Bankers 

When I was a lass I was proud of my class, like my father and mother before me
They taught me to fight for my civil rights, but it’s always the same old story – 
The rich reign supreme while the poor can but dream under Labour or Liberal or Tory 
And I say -
Bugger the bankers and politicians, bugger the bureaucrats too 
Bugger the buggers who make up the rules
And if you're one of them - bugger you
And if you're one of them - bugger you 

The system is bent and the money’s all spent, we’re badgered from every direction
The workers get taxed while the wealthy relax with nary a moment’s reflection
Where there’s brass, there’s muck and they don’t give an arse 
‘Cos we’re programmed against insurrection
And I say -
Bugger the bankers and politicians, bugger the bureaucrats too 
Bugger the buggers who make up the rules
And if you're one of them - bugger you
And if you're one of them - bugger you 

DANCE BREAK 

Now all you good people with passion to vent, don’t give up the struggle for justice 
But I’ve done my time on the protesters’ line and these days I show my dissent
By loitering within my tent
And I say -
Bugger the bankers and politicians, bugger the bureaucrats too 
Bugger the buggers who make up the rules
And if you're one of them - bugger you
And if you're one of them - bugger you, oh 

Bugger the bankers and politicians, bugger the bureaucrats too 
Bugger the buggers who make up the rules
And if you're one of them - bugger you
And if you're one of them - bugger you 
And if you're one of them - bugger you 

© Suzy Davies 2012 

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Eric Idle rewrites Monty Python’s “Galaxy Song” to celebrate the wonders of biology
Lauren Davis

To market the BBC Two series Wonders of Life, hosted by Brian Cox, the BBC got none other than Eric Idle to write and sing new lyrics to "The Galaxy Song" from Monty Python's The Meaning of Life. But instead of singing about the massive scale of the universe and humanity's insignificance in it, this time Idle sings about the miracle—and weirdness—of life on Earth.

http://io9.com/5971938/eric-idle-rewrites-monty-pythons-galaxy-song-to-celebrate-the-wonders-of-biology

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Doing a simple calculation of the area of a disk 10,000 light-years vs. 100,000 light-years (but 50,000 light-years in radius) yields an area of our galaxy about 25 times larger that we can NOT survey for supernova remnants vs. what we can.

That's incorrect. We have radio telescope images of the galactic center which is 26000 light years away. Second, the estimates are based not on what we can't see, but the percentage that we can see and then averaging for the rest.

The next part is that supernova remnants don’t just form out of nothing, they form from the explosions of dying stars. The stars that live and die the fastest still take about 10,000,000 years before they “go nova” and release a cloud of debris that will later become what we observe. That’s pretty much the minimum time a star can “live” during the current epoch of the Universe. Only after that will we see a supernova form.

Actually, O3 type stars can go nova in about 3 million years time, according to that model.

So, add that to our estimate of the age by the number of stars and we have 10,250,000 years, or 10.25 million years for the age of the galaxy. You should note at this point I’ve been saying “age of the galaxy.” That’s because this would only be used to date our galaxy, not the Universe as a whole. So you need to add in the time for galaxy formation … which is still a number that’s hotly debated, but no respected astronomer will say happens instantaneously.

You can't argue that the galaxy is that old because the stars are that old, when that is the thing in dispute. The argument is intending to prove the stars couldn't be that old in the first place, thus proving the galaxy is not that old.

BUT, there’s another complication to this situation which shows why this apparent “method” for dating our galaxy isn’t valid: Supernova remnants fade! They only are visible for a few tens of thousands of years. What does this mean for our estimate of 1,000,000 years for the age of our galaxy? Well, by the time the “oldest” supernova is fading, we starting to observe supernova 200! We should only expect to see in the neighborhood of a few hundred supernova remnants in our vicinity, regardless of how old our galaxy actually is."

According to

http://www.talkorigins.org/faqs/supernova/snrfab.html

"Obviously, Davies never went SNR hunting in a galactic environment, but I have. For one thing, an SNR becomes essentially invisible, even in a non-crowded environment, within 1,000,000 year tops, maybe less, depending on the specifics of the supernova and environment. But in practice they become essentially invisible long before."

So, they can be visible up to 1,000,000 years, yet we don't find even one at the maximum range of expansion that we are able to detect (or anywhere near it). We should be seeing the entire range of the spectrum, but the biggest we can find (according to their model), is 20000 years old. So this evidence doesn't hold up and the point remains.