9. A method, comprising: receiving, by a television receiver, video content using an inactive tuner of the television receiver; obtaining, by the television receiver, text data corresponding to an audio portion of the video content; evaluating, by the television receiver, the text data to identify frequencies of words appearing in the text data; receiving, by the television receiver, input corresponding to determination of one or more user-designated keywords; storing the one or more user-designated keywords to a word list, wherein the word list includes at least a first keyword; determining, by the television receiver, that the first keyword appears in the text data with a first frequency greater than a first threshold frequency; and generating, by the television receiver, a first interface for display on a display device in real-time upon determining that the first frequency is greater than the first threshold frequency, wherein the first interface includes a notification identifying a match of the first keyword.
9. A method, comprising: receiving, by a television receiver, video content using an inactive tuner of the television receiver; obtaining, by the television receiver, text data corresponding to an audio portion of the video content; evaluating, by the television receiver, the text data to identify frequencies of words appearing in the text data; receiving, by the television receiver, input corresponding to determination of one or more user-designated keywords; storing the one or more user-designated keywords to a word list, wherein the word list includes at least a first keyword; determining, by the television receiver, that the first keyword appears in the text data with a first frequency greater than a first threshold frequency; and generating, by the television receiver, a first interface for display on a display device in real-time upon determining that the first frequency is greater than the first threshold frequency, wherein the first interface includes a notification identifying a match of the first keyword. 15. The method of claim 9 , further comprising generating the word list, wherein generating the word list includes: monitoring recorded or watched text data corresponding to audio portions of at least one of video content recorded by the television receiver and video content output by the television receiver for immediate display on the display device; evaluating the recorded or watched text data to rank words appearing in the watched or recorded text data by frequency; and adding one or more words appearing in the recorded or watched text data having rankings greater than a threshold ranking to the word list.