Why would you want to, I just use it as a dildo.
I plugged the HDMI cable into the HDTV and into the PS3. Then I went to the settings for both the HDTV and the PS3 slim and set them for HDMI and sync. When it works right putting a disc into the PS3 will turn on the HDTV and also switch the HDTV over to that HDMI input rather than a cable box or similar item even if it was on the cable box when you last used the HDTV.
The HDMI cable should be plugged in to an HDTV. If you have a Laptop or PC with a HDMI plug slot on it is also so it can be plugged in to a HDTV and is an out HDMI PLUG SLOT like the one that is on the PS3. Some HDMI cables that are sold are of low quality and do not work, stick with brand name cables that are not purchased from highly counterfeit sources in overseas locations.
Although you can connect TV to PC via DVI to HDMI cable, the picture quality is not guaranteed. This is not recommended by manufacturer.
No the laptop HDMI would allow the laptop to display on your HDTV just like the PS3 HDMI does or a PC HDMI does
You will first need a wireless PC to TV device. http://askbobrankin.com/howto_connect_your_pc_to_tv_wirelessly.html
It's not that hard to connect your TV to your computer. However, if you really need it, here is a good guide: http://www.guidingtech.com/1896/connecting-pc-laptop-to-TV-HDTV/. It shows you the steps and explains thoroughly. I'm not sure if you can display your monitor on your TV, however.
My LG 20M38H-B Monitor can not work with HDMI cable with my PC but work VGA port Properly.
If your PC has an HDMI port and the connector is the same as that used on a PS3, then it should work correctly.
coaxial
Yes, but if you have xfinity you should have a cable box and already have it hooked up to your TV. If not, your PC needs to have an HDMI port or a VMI port, you need a cable to run from your PC to the back of the TV. The cables usually run about $30-$60 in any electronics department.
One can buy a 25ft HDMI cable from such online stores as 'Amazon' within their departments of 'Electronics & Photo - HDMI Cables', 'Computers & Accessories', and 'PC & Video Games'. Alternatively, high street stores such as PC World also stock a range of HDMI cables.
Your PC's video settings may need to be changed in order to enable the HDMI output. Check your video card control panel.