A computerized method for personalizing video content, the method comprising receiving, by a server computing device, a request for a digital video stream from a client device, the request including authentication data associated with a user of the client device; generating, by the server computing device, a first set of personalized frames to be inserted into the requested digital video stream, wherein the personalized frames include content data specific to the user and one or more keys corresponding to content data common to a plurality of users; combining, by the server computing device, the first set of personalized frames and the requested digital video stream by extracting one or more frames from the requested digital video stream and replacing the extracted frames with one or more frames from the first set of personalized frames to generate a personalized video stream; transmitting, by the server computing device, the personalized video stream to a downstream device; generating, by the downstream device, a second set of personalized frames to be inserted into the personalized video stream, wherein the second set of personalized frames include content data corresponding to the one or more keys; combining, by the downstream device, the second set of personalized frames and the personalized video stream by extracting one or more frames from the personalized video stream and replacing the extracted frames with one or more frames from the second set of personalized frames to generate an updated personalized video stream; and transmitting, by the downstream device, the updated personalized video stream to the client device. receiving, by a server computing device, a request for a digital video stream from a client device, the request including authentication data associated with a user of the client device; generating, by the server computing device, a first set of personalized frames to be inserted into the requested digital video stream, wherein the personalized frames include content data specific to the user and one or more keys corresponding to content data common to a plurality of users; combining, by the server computing device, the first set of personalized frames and the requested digital video stream by extracting one or more frames from the requested digital video stream and replacing the extracted frames with one or more frames from the first set of personalized frames to generate a personalized video stream; transmitting, by the server computing device, the personalized video stream to a downstream device; generating, by the downstream device, a second set of personalized frames to be inserted into the personalized video stream, wherein the second set of personalized frames include content data corresponding to the one or more keys; combining, by the downstream device, the second set of personalized frames and the personalized video stream by extracting one or more frames from the personalized video stream and replacing the extracted frames with one or more frames from the second set of personalized frames to generate an updated personalized video stream; and transmitting, by the downstream device, the updated personalized video stream to the client device.