The story is part of an emerging pro-Kremlin disinformation narrative seeking to delegitimise the conduct and results of the 2020 US presidential election.
The OSCE report referred to in the segment noted that President Trump had issued warnings of large-scale falsification "without presenting any substantial evidence of systematic malfeasance and contradicting election officials at all levels" (p. 3), and that "[i]n contrast to these allegations, national security agencies issued statements attempting to reassure citizens about the integrity of the election process" (p. 11).
Nor does the OSCE charge US broadcast media outlets with "bias." The "Media" section of the report states that "freedom of expression was respected with a wide range of election-related information available, thus enabling voters to make an informed choice" (p. 15). What the OSCE does say in its assessment of US election coverage is that "[t]he cable networks," i.e. the liberal-leaning MSNBC and the conservative-leaning Fox News, both subscription-based channels, "were mostly relying on reporting opinions at the expense of balanced coverage" (ibid.). This appraisal does not extend to public broadcasters (NPR, PBS), national networks (ABC, CBS, NBC), newspapers, or online outlets.