Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: How many hours does this record approximately.
Document: The program does record...but I could not figure out how to watch it. I spent two hours trying everything I could think of. I even looked online. I am sure it would work if I knew the right steps or set up. But this unit was for my older parents.
The manual is in such small typing, it's a joke and a waste to even have one included. It claims to be a recorder but no instructions on how to record or how to play back a recording.
It did have a really good picture but I bought it to record and it had difficulty doing so. If you set a recording from the program guide it would not work most of the time. It would record if you pushed the record button but sometimes it would lock up. That is why I returned it. Here is the nit picky stuff you may be interested in.
A good tuner and will play back the TV shows you record but try to get the show to play back on another device is another story. It uses a mts file format and breaks up the programing by assigning different file extensions that your computer will not play. Can't get Windows 8 to do anything with it. Shame because it could have been great.
This product was used to replace an old DVR in a motorhome that only could search for digital television broadcast signals we are typically dealing with these days. The product works fine and did what I needed it to do. I didn't test it yet for recording using flash or other storage media. I couldn't yet figure out how to program the correct date on the programming guide although programming the time of day was simple.
This might be the product for you. For example. Recording your favorite TV to watch while your on vacation. I saw a similar unit at a lower price on Amazon.
This is the tool needed to send a TV signal to a device like a receiver and the receiver sends the signal to a projector
This is the second DTV tuner I ordered that actually works as promised. The first item (iView) didn't work at all so it was returned. I'm using the DTV tuner to bring local OTA antenna channels into my HDTV via HDMI cable. I have standard cable TV and a DTV antenna for local HD. However, the tuner on my TV set can only received signals from one source at a time (antenna or cable TV) and requires manually switching RF coax to accomplish this.
The front display gives the channels in numerical order and not the channel number. I just wonder why no company makes a $100 dvr that could do the things that a $100 vcr could do. I would pay $200 if it worked like a vcr and was as dependable. Yes, I am remembering back to the good ole days when things worked.
The cable TV input goes directly into the HDTV RF coax as usually but the antenna input goes through the DT-1200 and into the TV set using an HDMI slot. I am very satisfied with it's performance. It would be even better if the DT-1200 could handle two RF inputs simultaneously. Then I wouldn't even have to switch inputs on the TV set.
Answer: Depending on the size of the media storage connected to the recorder - approximately at 5 to 6 GB per hour for HDTV signal. I have a 750 GB USB drive connected to it and so it can record over 130 hours of TV shows.