Thank you all for all the help you've given me on all my other issues

My new issue is......
wait for it.....
waaaait.....
ok...
I want to be able to watch live tv AND record it on my computer.
We have DirecTV and all of our dvr's are HD.
In my office I have a wall outlet with 2 of those coaxial cable things - currently unused.
BUT I would like to watch and record live tv by WIRELESS means.
Is this possible?
If so, what all do I need? Some kind of thingie to plug into the DVR and my computer?
My computer does have a tv tuner thing in it but for some reason, I don't have any kind of software installed on my computer!
Here's a c & p with some info on my computer:
HP Pavilion p6180t customizable Desktop PC
* • Genuine Windows Vista Home Premium with Service Pack 1 (64-bit)
* • Intel(R) Core(TM) 2 Quad processor Q9550 [2.83GHz, 12MB L2, 1333MHz FSB]
* • SAVE $30! 8GB DDR3-1066MHz SDRAM [4 DIMMs]
* • 1TB 7200 rpm SATA 3Gb/s hard drive
* • 1GB NVIDIA GeForce GT 120 [DVI, HDMI, VGA]
* • LightScribe 16X max. DVD+/-R/RW SuperMulti drive
* • Integrated 10/100/1000 (Gigabit) Ethernet, No wireless LAN
* • 15-in-1 memory card reader, 2 USB, audio
* • TV tuner, dual format ATSC-NTSC with PVR, remote
* • Creative Sound Blaster X-Fi Xtreme Audio
* • 20% OFF! HP 2.1 30W stereo speakers with subwoofer and remote control
* • HP multimedia keyboard and HP premium laser mouse
* • Microsoft(R) Works 9.0
* • No additional security software
* • HP Home & Home Office Store in-box envelope
And here is a picture of the back of my computer so you can see all the plug thingies:
http://i988.photobucket.com/albums/af1/AmeliaUSA/backofcomputer.jpg
Now, I'm not sure if the built in tuner/dvr/pvr thingie is HD, probably not. That's okay.
So what I would love to do is be able to somehow configure everything so I can watch my Directv channels on my computer wireless-ly. I'm assuming there are some kind of adapters needed to do the wireless thing. The hd dvr in the main living area has a thing in the front - is it an hdmi thing? Here's a pic:
http://i988.photobucket.com/albums/af1/AmeliaUSA/Directv.jpg
I couldn't turn the dvr around to see what's on the back - I'm sure just the usual stuff.
SOOOOO
If I have to use cables - can I just use a coaxial cable thing and plug it into the wall in my office and in the back of my computer? Does my computer even have coaxial hole/plug thingies?
OMG I'm so annoying!
And I don't know what kind of software I'll need - so some advice on that would be great too.
Thank you so much in advance for any help on this. I thought it would be a simple thing but I can't figure it out. I checked the info that came with my computer and it only shows how to do it for cable - we have satellite so I guess it's different.
Thanks again and I hope you all had a GREAT weekend!
