Test 1 — Advanced Chart iframe widget (SLV) — known working format

Test 2 — Advanced Chart iframe widget (BTC) — hidden toolbars for compact look

Test 3 — Advanced Chart iframe widget (HL) — full toolbars for modal

All 3 use embed-widget-advanced-chart.js — the only confirmed-working TV widget. Tests 1 & 2 use hidden toolbars to simulate a compact mini-chart look.