There are several ways to watch Telemundo and Univision with or without cable. One possibility is purchasing an antenna and taking advantage of a television's often-forgotten function as a broadcast receiver. Watching online streaming at sites like EarthDispatch.com is another possibility.
Installing an Over The Air Antenna (OTA) enables a television to receive transmissions from major networks like ABC and CBS. Apart from locales close to the southern border, unfortunately, receiving Telemundo and Univision is unusual.
Telemundo and Univision both have apps for phones and other devices. Most programming is available free of charge through this medium.
Likewise, streaming sites stream Telemundo and Univision. All that is required is a device and a connection to the Internet.