Tonight the UFC is back in the Conor McGregor business as the Featherweight champ moves up to welterweight to face Nate Diaz. The co-main event will feature Rousey-killer Holly Holm defending her women's bantamweight title against Miesha Tate.

The fights will air live on pay-per-view in the U.S. from MGM Grand Garden Arena in Las Vegas, Nev. starting at 10 p.m. ET. There will be four preliminary fights on Fox Sports 1 at 8 p.m. ET and four more on the UFC's Fight Pass streaming service at 6:30 p.m. ET.

The five fight pay-per-view opens with women's bantamweights Amanda Nunes vs. Valentina Shevchenko, followed by a pair of light heavyweight bouts featuring Gian Villante vs. Ilir Latifi and Corey Anderson vs. Tom Lawlor.

The four fight Fox Sports 1 preliminaries are headlined by welterweights Brandon Thatch vs. Siyar Bahadurzada preceded by welterweights Erick Silva vs. Nordine Taleb, middleweights Vitor Miranda vs. Marcelo Guimaraes and featherweights Darren Elkins vs. Chas Skelly.

The Fight Pass prelims open the festivities with a pair of lightweight bouts featuring Diego Sanchez vs. Jim Miller and Justin Salas vs. Jason Saggo and card opener featherweights Julian Erosa vs. Teruto Ishihara.

No matter where in the world you are, here's how you can catch all the action from Las Vegas.

Online:

-- Fight Pass (early prelims), starting at 6:30 p.m. ET

-- UFC.TV (PPV main card), starting at 10 p.m. ET (excluding United Kingdom, Brazil and India)

-- YouTube (PPV main card), starting at 10 p.m. ET (United States and Canada only)

Cable/Satellite:

-- Fox Sports 1 (prelims), starting at 8 p.m.

-- DirecTV and Dish (PPV main card), starting at 10 p.m.

-- On your television (PPV main card), starting at 10 p.m. (see list of U.S. and international viewing options below)

Tablet/Mobile:

-- Android Market

-- App Store

Local Area:

-- Bar or restaurant (Joe Hand Promotions)

You can also watch UFC 196 through your television or set-top box, including Apple TV and Roku, as well as through a video game console such as PS3 or PS4.

Cable/Satellite Airings for the main UFC 196 card

North America

US -- Pay-Per-View

Canada -- Pay-Per-View

Central/South America

Brazil -- Combate

Mexico -- UFC Network

Argentina -- UFC Network

Chile -- UFC Network

Colombia -- UFC Network

Ecuador -- UFC Network

Nicaragua -- Channel 13

Panama -- UFC Network

Paraguay -- UFC Network

Peru -- UFC Network

Rep. Dominicana -- UFC Network

Venezuela -- UFC Network

Pacific Rim

Australia -- Main Event

New Zealand -- Sky TV

Brunei -- Fox South East Asia

Cambodia -- Fox South East Asia

China -- Fox South East Asia

China -- Guangdong TV

China -- LETV

China -- PPTV

Hong Kong -- Fox South East Asia

India -- Sony SIX SD, HD & KIK

Indonesia -- Fox South East Asia

Indonesia -- MNC/RCTI

Japan -- WoWoW

Macau -- Fox South East Asia

Malaysia -- Fox South East Asia (Delayed)

Micronesia -- Fox South East Asia

Mongolia -- Sansar HD

Myanmar -- Fox South East Asia

Palau -- Fox South East Asia

Papau New Guinea -- Fox South East Asia

Philippines -- Balls & ABS CBN Sports and Action

Singapore -- Fox South East Asia

South Korea -- Superaction SPOTV Plus

Thailand -- Fox South East Asia

Thailand -- RS Channel 8

Vietnam -- Fox South East Asia

Europe/Middle East/Africa