In today's modern world, entertainment has become an integral part of our lives. Television is one medium that people across the world use to enjoy their favorite shows, movies, and sports. However, with the rise of technology, traditional television sets have become outdated and are being replaced by Smart TVs and laptops. This is where TV tuner cards come in handy.

A TV tuner card is an electronic device that allows you to watch and record television programs on your computer or laptop. It plugs into a PCIe slot on your computer's motherboard and allows you to connect an antenna or cable connection to your computer. This allows you to watch live TV, record your favorite shows, and even pause and rewind live television.

If you are looking for a TV tuner card for your HP Envy 700-311napc, there are a few options available in the market. One of the popular brands is Hauppauge, which is known for its high-quality TV tuner cards. You mentioned in your post that you already have a working Hauppauge Win TV card from your old HP, and you can use that with your Envy 700-311napc. However, if you are looking to purchase a new one, you can consider some of the new models from Hauppauge or other brands such as AVerMedia, Elgato, and ASUS.

Hauppauge has a range of TV tuner cards that cater to different needs. The Hauppauge WinTV-quadHD is a popular choice for those who want to watch and record up to four TV programs at once on their computer. It also supports DVB-T/T2, ATSC, and QAM digital TV standards. If you are looking for a more portable option, you can consider the Hauppauge WinTV-dualHD, which is a compact USB TV tuner that works with Windows and Mac computers.

AVerMedia, another popular brand, offers the AVerMedia AVerTV Hybrid Volar HD, which is a USB TV tuner that allows you to watch and record live TV on your laptop or computer. It also comes with an antenna and a remote control.

Elgato, which is known for its gaming peripherals, also offers TV tuner cards for computers. The Elgato EyeTV Hybrid is a USB TV tuner that works with both Mac and Windows computers. It allows you to watch and record live TV and also comes with a software program that enables you to edit and export your recorded shows.

ASUS, a well-known brand in the computer hardware industry, offers the ASUS My Cinema U3100 Mini Plus Digital TV Receiver, which is a USB TV tuner that allows you to receive digital TV signals on your computer. It supports DVB-T and DVB-T2 digital TV standards.

In conclusion, a TV tuner card is a useful device for those who want to watch live TV on their computers or laptops. There are several brands and models available in the market, and you can choose one that suits your needs and budget. Hauppauge, AVerMedia, Elgato, and ASUS are some of the popular brands that offer TV tuner cards for computers.