` for bullet lists
+- Use `` for paragraphs, `` for bold, `` for italics
+- **Do NOT include ``, ``, ``, or `` tags**
+- Placeholder text for images and links uses `[instruction]` in italics
+- **Always use HTML entities for special characters -- never paste raw Unicode characters:**
+ - Em dash → `—` (NOT the literal — character)
+ - En dash → `–` (NOT the literal -- character)
+ - Ampersand → `&`
+ - Non-breaking space → ` `
+ - Degree sign → `°` (NOT °)
+ - Multiplication sign → `×`
+ - Smart/curly quotes → `“` `”` `‘` `’`
+ - This prevents garbled characters (e.g., â€") when Odoo reads the HTML
+
+The master template is in `assets/KB-Article-Template.html`. Follow it section by section.
+
+### Section-by-Section Fill Guide
+
+**Title & Header line:**
+```html
+MPTV-[ModelFix] -- [Size]" [Intelligence] [ModelType] Display
+Part Number: MPTV-[ModelFix]-G[Generation] | Model Family: [Family] | Category: [CategoryFull]
+```
+Where `CategoryFull`:
+- M → "Mobile Bus"
+- MR → "Mobile Rail -- Rail Certified"
+- MLP → "Mobile Low Power"
+- IX → "Indoor Extreme"
+- I → "Indoor Standard"
+- E → "Semi-Outdoor / External"
+- EX → "Outdoor Extreme"
+- EXD → "Outdoor Designer"
+- LM → "LED Modular"
+- LC → "LED Cabinet"
+
+**Display Image:** Leave the placeholder comment as-is.
+
+**Display Description:** Insert full text from Formula #2 verbatim in a `` tag.
+
+**Controller Specifications table:** Populate from the structured specs table in `controller-descriptions.md` for the matching controller code. For SDI/USB secondary displays, all N/A fields still appear in the table.
+
+**Display Panel Specifications table:** Populate from:
+- Screen Size, Resolution, Aspect Ratio, Orientation, Panel Technology: decoded from model
+- Brightness, Brightness Control, Cover Glass, Impact Rating: from `panel-descriptions.md`
+- Operating Temp Range: from Model Bible if available, otherwise `[To be confirmed]`
+- Max Power Draw: from Model Bible if available, otherwise `[To be confirmed]`
+
+Orientation: Landscape if resolution width > height, Portrait if height > width.
+Panel Technology: LCD for M/MR/IX/EX/E/I families; E-Paper for MLP; LED for LM/LC.
+Brightness Control: "Automatic Brightness Sensor" for M/MR/EX/E families; "N/A" for IX/I.
+
+**Physical Dimensions table:** Populate from Model Bible data if available; otherwise use `[To be confirmed]` for all cells.
+
+**Deployment Type & Installation Notes:**
+- M → "Mobile -- Bus"
+- MR → "Mobile -- Rail (Streetcar / Train / Subway)"
+- MLP → "Mobile -- Low Power / E-Paper"
+- IX → "Indoor -- Extreme / Commercial"
+- I → "Indoor -- Standard"
+- E → "Semi-Outdoor -- External (requires overhead cover)"
+- EX → "Outdoor -- Extreme"
+- EXD → "Outdoor -- Designer / Custom"
+- LM → "Outdoor -- LED Modular"
+- LC → "Outdoor -- LED Cabinet"
+Include 2-3 model-specific installation notes based on known deployment context. If unknown, use `[To be confirmed]`.
+
+**Connectivity & Integration:** Populate based on controller type:
+- MP controllers: Primary = Gigabit Ethernet, Secondary = WiFi; Protocol = MP-TV OS CMS push; Remote = MP-TV OS OTA/Dashboard
+- SDI: Primary = SDI BNC Coax daisy-chain (up to 128 displays); Protocol = SDI chain from primary intelligent display. Note: No independent connectivity -- requires primary MP-controller display.
+- USB: Primary = USB 3.0 to primary ELP display; Protocol = Mirrored output.
+ITxPT, Cellular/LTE: Use `[To be confirmed]` unless known.
+
+**Logical Component Block Diagram:** Leave placeholder as-is. Note: diagram to be created separately using Excalidraw or Draw.io.
+
+**Shop Diagram:** Leave placeholder link as-is. Note: link to be added when shop drawing is available.
+
+**Current Generation:** Fill in the generation number. For key changes, use `[To be confirmed -- provide generation history to populate]` if the user hasn't provided change notes.
+
+**Generation Change Log:** Start with G1 row = "Initial release". Fill subsequent rows only if generation history is known; otherwise leave as a single row.
+
+**Warranty & Support:** Use standard text verbatim from template. Leave RMA link as `[LINK]`.
+
+**Compliance & Certifications:**
+- HS Code: populate from Formula #3 logic
+- Environmental:
+ - EX/EXD: "IP54 minimum" (confirm actual rating)
+ - M/MR: "Vehicle rated"
+ - E: "IP54 (requires overhead cover)"
+ - IX/I: "N/A (indoor use)"
+ - LM/LC: "IP65 modules (confirm cabinet rating)"
+- Transit Certifications: For MR (rail) = "EN 50155, EN 45545-2 (fire/smoke)". For M (bus) = confirm. Others = `[To be confirmed]`
+- Safety/EMC and ADA: `[To be confirmed]` unless known.
+
+**Ordering & Stock Information table:** Populate from Model Bible:
+- Part Number: from Formula #1
+- Factory: from Model Bible (e.g., HMX)
+- Stock Status: decode the code -- CS=Current Stock, SO=Special Order, RP=Regular Production, PR=Pre-Release
+- Lead Time: `[Contact sales]` unless known
+
+**Related Items:** List sibling models (e.g., the SDI secondary variant, portrait variant, dual variant, larger size in same family). Use `[LINK]` placeholders -- Odoo links will be added when articles exist.
+
+**Internal Notes:** Leave the HTML comment block as-is (hidden from Odoo view by default).
+
+---
+
+## Notes on Secondary Models ("s" suffix)
+
+Models ending in "s" (e.g., M24s, MR27vs) are **Secondary displays** with SDI or USB controllers.
+- Always include a prominent note in Connectivity & Integration that these require a primary Intelligent display
+- In the Controller Specifications table, all fields show "N/A (Secondary Display)"
+- The Purchase Description `DisplayType` is the same as the primary (Bus LCD, Rail LCD, etc.)
+
+---
+
+## Notes on Dual Models ("-Dual" suffix)
+
+Models with "-Dual" (e.g., M29sw-Dual) are two-sided displays.
+- Part Number: replace "-Dual" with "d" → M29sw-Dual → MPTV-M29swd-G2
+- Mention dual-sided nature in the title, Display Description context, and Installation Notes
+- Use cases should emphasize back-to-back or opposing-side passenger viewing
+
+---
+
+## Notes on LED Families (LM, LC)
+
+LM and LC models use LED panel technology, not LCD.
+- Screen "Size" is expressed as a physical module dimension ratio in mm (e.g., 960x480), not diagonal inches
+- Resolution depends on pixel pitch -- confirm from Model Bible or user interview
+- Panel Technology in KB article = "LED (Modular)" for LM, "LED (Cabinet)" for LC
+- Brightness is typically expressed in nits/m2 for LED; confirm from reference data or user