Layout
Reel and row counts describe the grid, not the number of paylines or a direct measure of winning chances.
Themes, reels and special symbols combine into a slot design. Starburst provides a concrete example for understanding video slots alongside classic reel formats.

Classic slots are associated with simple symbols and compact layouts. Video slots allow more animation and feature variety. Visual complexity does not reveal likely outcomes.
Starburst is a NetEnt video slot with five reels and three rows. Gems, bars and sevens sit alongside its special Starburst Wild. It shows how expansion and a respin can be parts of one feature.
A payline is a defined evaluation path; any visible row is not automatically a winning line. Wilds can substitute for symbols, but their rules differ between games. Read the relevant paytable alongside examples.
Consider these aspects separately according to your question.
Reel and row counts describe the grid, not the number of paylines or a direct measure of winning chances.
This defines eligible combinations and their evaluation. Match the exact version first.
Expanding wilds and respins operate under specific conditions. A familiar name does not establish identical behaviour.

If a wild expands across a reel, what it substitutes for and when the layout is evaluated are separate questions. An animation alone does not answer both.
A respin and a new independent round are different concepts. A feature may retain positions; its own rules determine what remains and what changes.
Distinguish the original from similarly named versions.
Check symbols, evaluation paths and feature definitions.
Check whether the stated conditions apply to a wild example.
No. Layout alone does not establish probabilities or cost.
No. A software symbol layout differs from a streamed physical table.
Exceptions depend on the game; read its own rules.
The Starburst page explains NetEnt’s specific layout and features.