Most of our local news stations have started streaming severe weather coverage or breaking news so we watch it on a laptop if we have to go to the safe room or we lose power. I don't know how long my router and modem will run on the UPS but it seems to be quite a while. The broadband router has dual internal battery backups so it's good for hard wired use for about 16 hours after the UPS dies.
I'm going to watch this thread though. A handheld television would be a bonus but a small, simple LCD television on a UPS with a digital antenna would be easy enough to set up.
ETA: It looks like a USB Digital TV Tuner attached to a laptop might be an inexpensive way to achieve this although most appear to be wired. They seem to be available at the regular tech outlets although reviews appear to be mixed.
In the emergency management world, you learn in training that you can never count on wireline connectivity. You also learn you can never count on wireless connectivity. As a result, you need a plan that includes multiple options.
While I can't go into deep specifics here, ATSC digital television is a poor - very poor - replacement for the old NTSC/Analog system when you're looking at things from an emergency preparedness perspective.
- Much worse battery life (the QAM tuner chipsets were not designed with battery battery life in mind)
- Does not work at all in a moving vehicle
- Much lower real-life signal strength
- More complex user interface necessary for operation
So an ATSC (digital) portable is sub-optimal.
So consider a laptop for your television - stream it over the internet, right?
Well....the curious thing about streaming video media over the internet is that the economics of it are 100% inverted from the over the air (OTA) broadcast model.
In the OTA broadcast model, if you spend $1,000,000 to operate a transmitter tower every year, and you have only one house tuned in, your cost per viewer is $1,000,000. However, if you have 10,000,000 viewers you cost per viewer is only $1.00. This is not the case with internet streaming. Each added viewer ADDS to the cost for the station, instead of reducing it. The net effect is that you don't see a lot of live local television online, and where you do, they are not set up for the needed capacity for a major bump up in use that would happen in the event of an emergency. Not only that, but something called "multicasting" which was supposed to solve a lot of the problems of an increasing need for bandwidth where there is a "broadcast" of the same program never really caught on, and it looks like the upcoming replacement internet protocol (IPv6) which could address and somewhat solve the multicasting problem isn't getting any meaningful adoption rates by ISP's and where it is, they are ignoring the multicasting capabilities. So live internet television is kind of risky for emergencies. Not only that - your phone/cable lines go down, you're out of luck. 3G USB cards that use the cellular network are only barely able to stream live video, and the cell network tends to wheeze and struggle in emergencies anyway.
So, what you're left with is the laptop OTA tuner card as the best choice, for a number of reasons, including that the Laptop can connect to streaming media as well as broadcast media. Laptops are their own UPS as well, and you can connect them to any number of external power supplies.
I've been using Mac laptops for a long time, but you can use any Windows or Mac laptop, and even a low-cost netbook running windows as a kind of all-purpose emergency communications station. I've been really happy with the Acer netbooks, and the Dell Mini-9 and Mini-10 are good too.
In terms of TV cards, anything by Hauppauge and Pinnacle has worked well for me lately.
Oh - one last thing - the ATSC digital television signal is nearly useless in outlying areas where you used to get snowy pictures. I've posted here tales of my failed efforts to get decent signal (massive antenna towers, new coax, rotators). Out here, we lost all but 2 stations, so consider this if you're in an area that used to get weak OTA signals - you might get nothing at all.