arXiv:2608.03964v3 Announce Type: replace Abstract: Audio-visual target speaker extraction should recover the person indicated by the video, rather than repeatedly return the acoustically dominant voice. We introduce REAL-2MIX, a Mandarin benchmark of jointly recorded two-speaker mixtures with synchronized multi-view video and scene-matched solo references. Its 77 scenes contain 7,598 clips; filtering yields 6,038 evaluable mixtures, each queried for both speakers, giving 12,076 paired target queries. We also curate VOXBLINK2-AVSE, comprising 250,828 synchronized audio--lip pairs. A seven-system TF-GridNet study examines visual representations, training corpora, and conditioning strategies. We evaluate transcription accuracy, speaker identity, residual overlap, and perceptual quality. The AVSR early-fusion system achieves 22.99% CER, and 93.38% of its outputs are more similar to the target speaker than to the interferer. Yet only 42.49% satisfy both this identity criterion and the overlap detector's single-speaker criterion; both target queries satisfy these criteria for just 20.77% of mixtures. A separate Real-AVSE challenge study examines development-remix adaptation. The benchmark reveals that favorable content and identity scores need not coincide with low detected overlap, motivating paired-target evaluation.