A method for processing data comprising: receiving at a first presentation device a data stream in a first multimedia data format from a first data source, the first multimedia data format being HDMITM format and the first presentation device being capable of presenting data in the first multimedia data format; after receiving the data stream, determining, by the first presentation device, if a second presentation device coupled to the first presentation device is capable of presenting data in the first multimedia data format; responsive to a determination that the second presentation device is incapable of presenting data in the first multimedia data format, generating a modified multimedia data stream in a second multimedia data format which can be presented by the second presentation device, the second multimedia format being another HDMITM format, by combining 1) a replacement data portion generated by converting a first portion of the data stream to the second multimedia format, 2) a second portion of the received data stream different from the first portion, and 3) non-HDMI data received from a second data source different from the first data source that has been converted into a format usable by the second presentation device; providing, by the first presentation device, the modified multimedia data stream to the second presentation device, the second presentation device configured to present the modified multimedia data stream in the second multimedia data format; and presenting, to a user, a portion of the received data stream in the first multimedia data format by the first presentation device and a corresponding portion of the modified multimedia data stream in the second multimedia format by the second presentation device. receiving at a first presentation device a data stream in a first multimedia data format from a first data source, the first multimedia data format being HDMITM format and the first presentation device being capable of presenting data in the first multimedia data format; after receiving the data stream, determining, by the first presentation device, if a second presentation device coupled to the first presentation device is capable of presenting data in the first multimedia data format; responsive to a determination that the second presentation device is incapable of presenting data in the first multimedia data format, generating a modified multimedia data stream in a second multimedia data format which can be presented by the second presentation device, the second multimedia format being another HDMITM format, by combining 1) a replacement data portion generated by converting a first portion of the data stream to the second multimedia format, 2) a second portion of the received data stream different from the first portion, and 3) non-HDMI data received from a second data source different from the first data source that has been converted into a format usable by the second presentation device; 1) a replacement data portion generated by converting a first portion of the data stream to the second multimedia format, 2) a second portion of the received data stream different from the first portion, and 3) non-HDMI data received from a second data source different from the first data source that has been converted into a format usable by the second presentation device; providing, by the first presentation device, the modified multimedia data stream to the second presentation device, the second presentation device configured to present the modified multimedia data stream in the second multimedia data format; and presenting, to a user, a portion of the received data stream in the first multimedia data format by the first presentation device and a corresponding portion of the modified multimedia data stream in the second multimedia format by the second presentation device. <EOS>