For vision care reasons, it's best to watch television from at least 6-8 feet away, and from a sitting position rather than lying down. The radiation from a TV is not dangerous as such, but watching from too close can invite eyestrain, which can lead to headaches and more serious problems.
Finding a new vision care specialist may seem a daunting task, but as with most everything you should start by networking with friends, family, and coworkers in order to build a list of potential options. Once you have at least three good recommendations, pay them each a visit.