Not really the first
All HD-ready TVs have an 'image upscaler', otherwise you'd see a tiny picture in the middle of the screen whenever you were watching an SD broadcast.
Toshiba has launched the first TV that incorporates its own image upscaling system. Tosh_ZF_resolution_plus Toshiba's ZF set will upscale SD automatically Dubbed Resolution Plus, the technology features in the firm’s new Regza ZF series of screens and allows the 40in and 46in tellies to enhance the quality of standard …
Judging from current information available, resolution+ from Toshiba seemt to be more like super resolution which calculates additional details based on differences between several images. According to research of the last few years, this can be used to increase resolution by a factor of 2 in each direction.
Best regards,
Mr. Wartung